2H-Azirine-2-caboxamides have been designed to perform as a new type of bifunctional thiol linker under very mild reaction conditions. The cleavage of a C-N double bond of 2H-azirine furnishes an amino amide functional group in situ through a thiol addition and ring-opening process. It works with a broad scope of thiols and 2H-azirines in the absence of any catalysts at room temperature. Cysteine-containing
chemoselective reaction between 5-aminoisoxazoles and α-diazocarbonyl compounds has been described. Both Wolff rearrangement and N–H insertion products can be obtained selectively by the judicious choice of reaction conditions. In the case of the Wolff rearrangementreactions, the N-isoxazole amides are accessed as the sole products under thermal conditions. On the other hand, α-amino acid derivatives
The study of reactions of α-chlorocinnamonitriles with hydroxylamine
作者:V. G. Nenajdenko、I. V. Golubinskii、O. N. Lenkova、A. V. Shastin、E. S. Balenkova
DOI:10.1007/s11172-006-0029-1
日期:2005.7
The E-isomers of α-chlorocinnamonitriles react with hydroxylamine to give a mixture of isomeric aminoisoxazoles, while the Z-isomers yield 3-aryl-2-chloroacrylamide oximes.
α-氯肉桂腈的E异构体与羟胺反应生成一 mixture of isomeric aminoisoxazoles,而Z异构体则产生3-芳基-2-氯丙烯酰胺肟。
Kong, Yung Cheol; Kim, Kyongtae; Park, Yung Ja, Heterocycles, 2001, vol. 55, # 1, p. 75 - 89