169213-73-4Relevant articles and documents
Synthesis of 3-perfluoroalkyl-, including 3-trifluoromethyl-, substituted pyrazoles from perfluoroalkylacetylenes
Tang, Xiao-Qing,Hu, Chang-Ming
, p. 129 - 132 (1995)
3-Perfluoroalkylpyrazoles 2 have been prepared in excellent yield by the reactions of perfluoroalkylacetylenes 1 with hydrazine monohydrate under mild conditions. - Keywords: Perfluoroalkylpyrazoles; Synthesis; Perfluoroalkylacetylenes; Hydrazene; Nucleop
PYRAZOLYL SUBSTITUTED TETRAHYDROPYRANYLSULFONES
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Page/Page column 41-42, (2017/08/01)
The invention relates to pyrazolyl substituted tetrahydropyranylsulfones as voltage gated calcium channel blockers, to pharmaceutical compositions containing these compounds and also to these compounds for use in the treatment and/or prophylaxis of pain and further diseases and/or disorders.
PYRAZOLEALKANAMIDE SUBSTITUTED THIOPHENES AS AMPA POTENTIATORS
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Page/Page column 58-59, (2008/06/13)
The present invention relates to a heterocyclic derivative according to Formula (I) wherein the variables are defined as in the specification, or to a pharmaceutically acceptable salt or solvate thereof. The present invention also relates to a pharmaceuti
Convenient and versatile synthesis of 3-(polyfluoroalkyl)pyrazoles
Tang, Xiao-Qing,Hu, Chang-Ming
, p. 1039 - 1044 (2007/10/02)
3-(Polyfluoroalkyl)pyrazoles 4 have been synthesized in excellent yields in a two-step sequence from polyfluoroalkyl iodides 1.The synthesis consisted of the reaction of iodides 1 with enamines or enol ethers to give α-polyfluoroalkyl carbonyl derivatives 3 followed by treatment with hydrazine monohydrate.A practical one-pot synthesis of pyrazoles 4 from iodides 1 gas also been developed and the reaction mechanism is discussed.
A novel and practical method for the synthesis of 3-trifluoromethylated pyrazoles
Tang,Hu
, p. 631 - 632 (2007/10/02)
A new building block strategy for the synthesis of a series of 3-trifluoromethyl substituted pyrazoles 4 by a two-step sequence is described.