A new stereoselective synthesis of 2-amino-4,5-dihydrothiophene-3-carbonitrile derivatives
作者:V. V. Dotsenko、S. G. Krivokolysko、A. N. Chernega、V. P. Litvinov
DOI:10.1007/s11172-007-0217-7
日期:2007.7
A new stereoselective method for the synthesis of trans-isomers of 2-amino-4-aryl-5-benzoyl-4,5-dihydrothiophene-3-carbonitriles was proposed. The method involves base-catalyzed reactions of phenacyl thiocyanate with 3-(het)aryl-2-cyanoprop-2-enethioamides. (4R,5S/4S,5R)-2-Amino-5-benzoyl-4-(2-chlorophenyl)-4,5-ihydrothiophene-3-carbonitrile was structurally characterized by X-ray diffraction analysis.
提出了一种合成反式异构体的新的立体选择性方法,用于2-氨基-4-芳基-5-苯甲酰-4,5-二氢噻吩-3-腈。该方法涉及基催化反应,将苯乙酰硫氰酸酯与3-(杂)芳基-2-氰基丙-2-烯硫酰胺反应。通过X射线衍射分析对(4R,5S/4S,5R)-2-氨基-5-苯甲酰-4-(2-氯苯基)-4,5-二氢噻吩-3-腈的结构进行了表征。