cas 3399-56-2, 5-Cyano-1-phenyl-1H-pyrazole-3-carboxylic acid ethyl ester | Articles data ｜lookchem

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3399-56-2

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Iodine-Catalyzed Regioselective Oxidative Cyclization of Aldehyde Hydrazones with Electron-Deficient Olefins for the Synthesis of Mefenpyr-Diethyl
A regioselective synthesis of polysubstituted dihydropyrazoles and pyrazoles through an iodine-catalyzed oxidative cyclization strategy of aldehyde hydrazones with electron-deficient olefins is described. The protocol adopts very mild reaction conditions and provides desirable yields. The reaction is supposed to proceed via a cascade C-H functionalization, C-N bond formation, and oxidation sequential processes. The overall simplicity and regioselectivity of the catalytic system make this approach a valuable and step-economical tool to construct a C-C bond for the synthesis of Mefenpyr-Diethyl.
Deng, Yun-Xia,Lin, Hao-Peng,Wang, Wen-Kang,Zhao, Sheng-Yin,Zheng, Jian,Zhu, Jia-Nan
(2019/08/26)

CALPAIN MODULATORS AND THERAPEUTIC USES THEREOF
Disclosed herein are small molecule calpain modulator compositions, pharmaceutical compositions, the use and preparation thereof.
-
(2018/04/17)

A ONE STEP SYNTHESIS OF 4-CYANOPYRAZOLES
Reaction of nitrilimines 2 with fumaronitrile 6 yielded 4-cyanopyrazoles 8 in good yields.The structures of 8 were substantiated by comparison with their regioisomers 5-cyanopyrazoles 5, prepared by addition of 2 to acrylonitrile followed by oxidation of
Hassaneen, Hamdi M.,Ead, Hamed A.,Elwan, Nehal M.,Shawali, Ahmed S.
p. 2857 - 2862
(2007/10/02)

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Chemical Properties

Melting Point: 134℃
Density: 1.20
PSA: 67.91000
LogP: 1.92068

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