The Experts below are selected from a list of 303 Experts worldwide ranked by ideXlab platform
Angelo Frongia - One of the best experts on this subject based on the ideXlab platform.
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Tandem Wittig Reaction-Ring Contraction of Cyclobutanes: A Route to Functionalized Cyclopropanecarbaldehydes.
Organic letters, 2019Co-Authors: Federico Cuccu, Lorenzo Serusi, Alberto Luridiana, Francesco Secci, Pierluigi Caboni, David J. Aitken, Angelo FrongiaAbstract:An original tandem Reaction consisting of a Wittig Reaction–ring contraction process between α-hydroxycyclobutanone and phosphonium ylides has been developed. Highly functionalized cyclopropanecarb...
James P. Morken - One of the best experts on this subject based on the ideXlab platform.
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Stereoselective Synthesis of Trisubstituted Alkenylboron Reagents by Boron-Wittig Reaction of Ketones.
Organic Letters, 2019Co-Authors: Sheila Namirembe, Ryan P. Wexler, James P. MorkenAbstract:Application of the boron-Wittig Reaction to ketone electrophiles provides a straightforward route to trisubstituted alkenylboronic esters. With either a pentamethyldiethylenetriamine or trimethyl-1,4,7-triazacyclononane additive, the olefination can occur with very high levels of stereocontrol and in good chemical yield.
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synthesis of vinyl boronates from aldehydes by a practical boron Wittig Reaction
ChemInform, 2015Co-Authors: John R Coombs, Liang Zhang, James P. MorkenAbstract:A scalable, transition-metal free Wittig Reaction starting from geminally substituted and unsubstituted bis(boronates) and a diverse range of alkyl, alkenyl, and alkynyl aldehydes to 1,2- and 1,2-disubstitued as well as trisubstituted vinyl boronates is elaborated.
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synthesis of vinyl boronates from aldehydes by a practical boron Wittig Reaction
Organic Letters, 2015Co-Authors: John R Coombs, Liang Zhang, James P. MorkenAbstract:A highly stereoselective boron-Wittig Reaction between stable and readily accessible 1,1-bis(pinacolboronates) and aldehydes furnishes a variety of synthetically useful di- and trisubstituted vinyl boronate esters.
Federico Cuccu - One of the best experts on this subject based on the ideXlab platform.
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Tandem Wittig Reaction-Ring Contraction of Cyclobutanes: A Route to Functionalized Cyclopropanecarbaldehydes.
Organic letters, 2019Co-Authors: Federico Cuccu, Lorenzo Serusi, Alberto Luridiana, Francesco Secci, Pierluigi Caboni, David J. Aitken, Angelo FrongiaAbstract:An original tandem Reaction consisting of a Wittig Reaction–ring contraction process between α-hydroxycyclobutanone and phosphonium ylides has been developed. Highly functionalized cyclopropanecarb...
Stephen P. Marsden - One of the best experts on this subject based on the ideXlab platform.
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The Wittig Reaction cleans up
Nature Chemistry, 2009Co-Authors: Stephen P. MarsdenAbstract:The formation of a phosphine oxide with its strong P=O bond is the driving force for the classical Wittig Reaction, but is wasteful and can pose problems during purification. A new development allowing the use of catalytic phosphorus reagents promises to clean up olefination chemistry.
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Organic synthesis: The Wittig Reaction cleans up.
Nature chemistry, 2009Co-Authors: Stephen P. MarsdenAbstract:The formation of a phosphine oxide with its strong P=O bond is the driving force for the classical Wittig Reaction, but is wasteful and can pose problems during purification. A new development allowing the use of catalytic phosphorus reagents promises to clean up olefination chemistry.
Shoji Eguchi - One of the best experts on this subject based on the ideXlab platform.
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Recent Advances in Synthetic Method of Nitrogen Heterocycles via Aza- Wittig Reaction
ChemInform, 2010Co-Authors: Shoji Eguchi, Takashi OkanoAbstract:Recent advances in synthetic method of heterocyclic compounds by aza-Wittig Reaction, i.e., the imination using iminophosphoranes, are here reviewed. Examples are systematically presented depending on the direct cyclization route by intramolecular aza-Wittig Reaction, or the sequential route via intermolecular aza-Wittig Reaction, followed by various types of cyclizations such as electrocyclic Reaction, Diels-Alder cycloaddition, and nucleophilic heterocyclization etc. The feasibility of this method in synthesis of nitrogen-heterocycles is emphasized in this review.
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recent progress in the synthesis of heterocyclic natural products by the staudinger intramolecular aza Wittig Reaction
Arkivoc, 2005Co-Authors: Shoji EguchiAbstract:A review of recent progress in the synthesis of heterocyclic natural products by the aza-Wittig method focusing on applications of the tandem Staudinger/intramolecular aza-Wittig Reaction.
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Facile synthesis of pyrazino[2,3-e][1,4]diazepine derivatives via the intramolecular aza-Wittig Reaction
Tetrahedron Letters, 1996Co-Authors: Tomohiro Okawa, Shoji EguchiAbstract:Abstract Pyrazino[2,3- e ][1,4]diazepine derivatives were synthesized from 3-aminopyrazine-2-carboxylic acid 1 and α-amino acid esters via the intramolecular aza-Wittig Reaction.
