A simple one-pot synthesis of 3-alkoxy-3-cyanocarboxylic acids: a rapid entry to new GABA derivatives
作者:Nilo Zanatta、Fabio M. da Silva、Luciana S. da Rosa、Louíse Jank、Helio G. Bonacorso、Marcos A.P. Martins
DOI:10.1016/j.tetlet.2007.07.060
日期:2007.9
A simpleone-potprocedure to obtain a series of new 3-alkoxy-3-cyanocarboxylic acids from the reaction of 4-alkoxy-1,1,1-trichloro-but-3-en-2-ones with sodium cyanide is described.
A Useful One-Step Synthesis of β-Trihaloacetylvinyl Ethers and Trihaloacetylketene Acetals
作者:Masaru Hojo、Ryōichi Masuda、Etsuji Okada
DOI:10.1055/s-1986-31852
日期:——
HOJO MASARU; MASUDA RYOICHI; OKADA ETSUJI, SYNTHESIS,(1986) N 12, 1013-1014
作者:HOJO MASARU、 MASUDA RYOICHI、 OKADA ETSUJI
DOI:——
日期:——
1,1,1-Trichloro-4,4-diethoxy-3-buten-2-one and its Trichloroacetylacetate Derivatives: Synthesis and Applications in Regiospecific Preparation of Azoles
作者:Marcos A. Martins、Claudio M. Pereira、Nilo E. Zimmermann、Sidnei Moura、Adilson P. Sinhorin、Wilson Cunico、Nilo Zanatta、Helio G. Bonacorso、Alex C. Flores
DOI:10.1055/s-2003-42407
日期:——
acylation reaction of respective trialkyl orthoacetates and orthopropionates with trichloroacetyl chloride in good yields, is reported. The title compounds were used for the regiospecific preparation of two isoxazoles and five pyrazoles in the cyclocondensation with hydroxylamine and hydrazines, respectively. The transformation of the trichloromethylgroup under mild conditions into carboxylic groups is also