The Experts below are selected from a list of 5022 Experts worldwide ranked by ideXlab platform
Yun-xiang Zhang - One of the best experts on this subject based on the ideXlab platform.
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a new synthetic route of 4 4 hexafluoroisopropylidene 2 2 bis Phthalic Acid anhydride and characterization of 4 4 hexafluoroisopropylidene 2 2 bis Phthalic Acid anhydride containing polyimides
Journal of Fluorine Chemistry, 2003Co-Authors: Shizheng Zhu, Jingwei Zhao, Yun-xiang ZhangAbstract:Abstract The title product 4,4′-hexafluoroisopropylidene-2,2-bis-(Phthalic Acid anhydride) was prepared from hexafluoroacetone and o-xylene as the starting materials by condensation, oxidation and dehydration three-step reaction sequence. It reacted with diamines in DMF or xylene to give polyimides by condensation polymerization. Thermal and viscosity analyses show that these polyimides have lower molecular weight but excellent thermal stability.
Carlos M Gomez - One of the best experts on this subject based on the ideXlab platform.
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inexpensive Phthalic Acid promoted domino povarov reaction between anilines and n vinylamides an efficient preparation of privileged 4 substituted 2 methyl 1 2 3 4 tetrahydroquinoline scaffolds
Synthesis, 2011Co-Authors: Vladimir V Kouznetsov, Diego Merchan R Arenas, Cesar Ortiz J Areniz, Carlos M GomezAbstract:An efficient and simple synthesis of new 2-methyl-1,2,3,4-tetrahydroquinolines with C4 amide fragments based on the Phthalic Acid promoted domino Povarov reaction between anilines and N-vinylamides has been developed.
Shizheng Zhu - One of the best experts on this subject based on the ideXlab platform.
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a new synthetic route of 4 4 hexafluoroisopropylidene 2 2 bis Phthalic Acid anhydride and characterization of 4 4 hexafluoroisopropylidene 2 2 bis Phthalic Acid anhydride containing polyimides
Journal of Fluorine Chemistry, 2003Co-Authors: Shizheng Zhu, Jingwei Zhao, Yun-xiang ZhangAbstract:Abstract The title product 4,4′-hexafluoroisopropylidene-2,2-bis-(Phthalic Acid anhydride) was prepared from hexafluoroacetone and o-xylene as the starting materials by condensation, oxidation and dehydration three-step reaction sequence. It reacted with diamines in DMF or xylene to give polyimides by condensation polymerization. Thermal and viscosity analyses show that these polyimides have lower molecular weight but excellent thermal stability.
Vladimir V Kouznetsov - One of the best experts on this subject based on the ideXlab platform.
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inexpensive Phthalic Acid promoted domino povarov reaction between anilines and n vinylamides an efficient preparation of privileged 4 substituted 2 methyl 1 2 3 4 tetrahydroquinoline scaffolds
Synthesis, 2011Co-Authors: Vladimir V Kouznetsov, Diego Merchan R Arenas, Cesar Ortiz J Areniz, Carlos M GomezAbstract:An efficient and simple synthesis of new 2-methyl-1,2,3,4-tetrahydroquinolines with C4 amide fragments based on the Phthalic Acid promoted domino Povarov reaction between anilines and N-vinylamides has been developed.
Jingwei Zhao - One of the best experts on this subject based on the ideXlab platform.
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a new synthetic route of 4 4 hexafluoroisopropylidene 2 2 bis Phthalic Acid anhydride and characterization of 4 4 hexafluoroisopropylidene 2 2 bis Phthalic Acid anhydride containing polyimides
Journal of Fluorine Chemistry, 2003Co-Authors: Shizheng Zhu, Jingwei Zhao, Yun-xiang ZhangAbstract:Abstract The title product 4,4′-hexafluoroisopropylidene-2,2-bis-(Phthalic Acid anhydride) was prepared from hexafluoroacetone and o-xylene as the starting materials by condensation, oxidation and dehydration three-step reaction sequence. It reacted with diamines in DMF or xylene to give polyimides by condensation polymerization. Thermal and viscosity analyses show that these polyimides have lower molecular weight but excellent thermal stability.