Journal of Organic Chemistry p. 5680 - 5686 (1992)
Update date:2022-07-30
Topics: Synthesis Regioselectivity Yield NMR spectroscopy Catalyst Solvent Chromatography Recrystallization Nucleophilic addition Michael addition Purification Reaction Mechanism Spectroscopic Analysis Tautomerization Heterocycle Cyclocondensation
Hamper, Bruce C.
Kurtzweil, Mitchell L.
Beck, James P.
Addition of monosubstituted alkylhydrazines to acetylenic esters with either electron-withdrawing or sterically bulky β-substituents afforded 1-alkyl-3-hydroxy-5-substituted-pyrazoles 1 as the major regioisomeric product.By comparison, the classical cyclo
View Morewebsite:http://www.shochem.com
Contact:021-50800795
Address:No.1043, Halei Rd, Zhangjiang Hi-Tech Park, Shanghai, Postcode 201203, China
website:http://www.jairadhesales.com
Contact:0091-79-26431096
Address:309 Harikrupa Tower,Nr old Sharda Mandir Char Rasta,Ellisbridge
Suzhou SuKaiLu Chemical Technology Co., Ltd.
Contact:+86-512-62766020
Address:Floor 4, Building 1, Xinyi Pharmaceutical Valley Wisdom Industrial Park, 415 Changyang Street, Suzhou Industrial Park, Jiangsu Province
Contact:+36(21)2523420
Address:Head office: 1102 Budapest, SZENT LASZLO TER 24/B. 1/1., HUNGARY / CHINA
Shanghai WinTide BioTechnology Co.,Ltd
Contact:86-21-37100630
Address:No. 908 Yunhe Road, Fengxian district, Shanghai
Doi:10.1039/c3cc42088d
(2013)Doi:10.1080/10426507.2012.743133
(2013)Doi:10.1002/adsc.201200499
(2012)Doi:10.1021/acscatal.7b00148
(2017)Doi:10.1002/jhet.1517
(2013)Doi:10.1016/S0040-4039(00)61286-8
(1992)
