The Experts below are selected from a list of 42 Experts worldwide ranked by ideXlab platform
Klaus Jurkschat - One of the best experts on this subject based on the ideXlab platform.
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reactivity of Elemental Tin and zinc toward organophosphonic acid dialkyl esters a new one pot recipe for the synthesis of coordination assemblies derived from o alkylorganophosphonate ligands
Inorganic Chemistry, 2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Michael Lutter, Gabriele Kociokkohn, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray...
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Reactivity of Elemental Tin and Zinc toward Organophosphonic Acid Dialkyl Esters: A New One-Pot Recipe for the Synthesis of Coordination Assemblies Derived from O‑Alkylorganophosphonate Ligands
2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Gabriele Kociok-köhn, Michael Lutter, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray crystallography for 2, 4, 6, and 7
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4 t bu 2 6 p o o i pr 2 2c6h2sn 2 an intramolecularly coordinated organoTin i compound with a sn sn single bond its disproportionation toward a diorganostannylene and Elemental Tin and its oxidation with phi oac 2
Inorganic Chemistry, 2012Co-Authors: Michael Wagner, Christina Dietz, Stefan Krabbe, Stephan G Koller, Carsten Strohmann, Klaus JurkschatAbstract:Syntheses of the intramolecularly coordinated organoTin(I) compound {4-t-Bu-2,6-[P(O)(O-i-Pr)(2)](2)C(6)H(2)Sn}(2) (2), which crystallized in two different pseudopolymorphs 2 and 2·C(7)H(8), of the diorganostannylene {4-t-Bu-2,6-[P(O)(O-i-Pr)(2)](2)C(6)H(2)}(2)Sn (3) and of the organoTin(II) acetate 4-t-Bu-2,6-[P(O)(O-i-Pr)(2)](2)C(6)H(2)SnOAc (4) are reported. The compounds were characterized by mulTinuclear NMR, IR (3 and 4), UV-vis spectroscopy (2), electrospray ionization mass spectrometry (3 and 4), and single-crystal X-ray diffraction analyses. Density functional theory calculations on compound 2 revealed the stabilizing effect of the intramolecular P═O → Sn coordination.
Ravi Shankar - One of the best experts on this subject based on the ideXlab platform.
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reactivity of Elemental Tin and zinc toward organophosphonic acid dialkyl esters a new one pot recipe for the synthesis of coordination assemblies derived from o alkylorganophosphonate ligands
Inorganic Chemistry, 2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Michael Lutter, Gabriele Kociokkohn, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray...
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Reactivity of Elemental Tin and Zinc toward Organophosphonic Acid Dialkyl Esters: A New One-Pot Recipe for the Synthesis of Coordination Assemblies Derived from O‑Alkylorganophosphonate Ligands
2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Gabriele Kociok-köhn, Michael Lutter, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray crystallography for 2, 4, 6, and 7
Swati Mendiratta - One of the best experts on this subject based on the ideXlab platform.
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reactivity of Elemental Tin and zinc toward organophosphonic acid dialkyl esters a new one pot recipe for the synthesis of coordination assemblies derived from o alkylorganophosphonate ligands
Inorganic Chemistry, 2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Michael Lutter, Gabriele Kociokkohn, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray...
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Reactivity of Elemental Tin and Zinc toward Organophosphonic Acid Dialkyl Esters: A New One-Pot Recipe for the Synthesis of Coordination Assemblies Derived from O‑Alkylorganophosphonate Ligands
2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Gabriele Kociok-köhn, Michael Lutter, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray crystallography for 2, 4, 6, and 7
Nisha Singla - One of the best experts on this subject based on the ideXlab platform.
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reactivity of Elemental Tin and zinc toward organophosphonic acid dialkyl esters a new one pot recipe for the synthesis of coordination assemblies derived from o alkylorganophosphonate ligands
Inorganic Chemistry, 2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Michael Lutter, Gabriele Kociokkohn, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray...
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Reactivity of Elemental Tin and Zinc toward Organophosphonic Acid Dialkyl Esters: A New One-Pot Recipe for the Synthesis of Coordination Assemblies Derived from O‑Alkylorganophosphonate Ligands
2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Gabriele Kociok-köhn, Michael Lutter, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray crystallography for 2, 4, 6, and 7
Michael Lutter - One of the best experts on this subject based on the ideXlab platform.
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reactivity of Elemental Tin and zinc toward organophosphonic acid dialkyl esters a new one pot recipe for the synthesis of coordination assemblies derived from o alkylorganophosphonate ligands
Inorganic Chemistry, 2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Michael Lutter, Gabriele Kociokkohn, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray...
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Reactivity of Elemental Tin and Zinc toward Organophosphonic Acid Dialkyl Esters: A New One-Pot Recipe for the Synthesis of Coordination Assemblies Derived from O‑Alkylorganophosphonate Ligands
2017Co-Authors: Ravi Shankar, Swati Mendiratta, Nisha Singla, Gabriele Kociok-köhn, Michael Lutter, Klaus JurkschatAbstract:A new recipe for the synthesis of diorganoTin bis(O-alkylorganophosphonate)s, R12Sn{O(P)(O)(OR1)R}2 [R = R1 = methyl (1); R1 = ethyl and R = methyl (2), allyl (3), 2-thienyl (4), benzyl (5)], has been developed from the direct reaction of Elemental Tin (powder) with organophosphonic acid dialkyl esters, RP(O)(OR1)2, in the presence of a catalytic amount of potassium iodide under ambient conditions (130 °C, 18–20 h). The key steps in the proposed catalytic cycle involve the monodealkylation of phosphonate diester and in situ generation of a R1SnI or R12SnI2 intermediate via the oxidative addition of alkyl iodide on Tin. Evidence in support of the formation of organoTin species comes from the isolation of Me2Sn{O(P)(O)(OiPr)Me}2 (6) from the direct reaction of Tin metal with MeP(O)(OiPr)2 in the presence of methyl iodide. The method has also been extended to isolate Zn{OP(O)(OMe)Me}2 (7) using metallic zinc as the precursor. All of the compounds have been characterized by IR and NMR studies as well as X-ray crystallography for 2, 4, 6, and 7