Synthesis of ethyl 3-amino-5-arylthiophene-2-carboxylates based on α-chlorocinnamonitriles
作者:A. V. Shastin、I. V. Golubinskii、O. N. Lenkova、E. S. Balenkova、V. G. Nenaidenko
DOI:10.1134/s1070428002120138
日期:2006.2
A new procedure was developed for preparation of ethyl 3-amino-5-arylthiophene-2-carboxylates by the reaction of alpha-chlorocinnamonitriles and their analogs with ethyl mercaptoacetate for a wide range of substrates. The reaction products form in high yields.
New synthesis of 3-aryl-5-amino-1H-pyrazoles
作者:V. G. Nenaidenko、I. V. Golubinskii、O. N. Lenkova、A. V. Shastin、E. S. Balenkova
DOI:10.1007/s11178-005-0053-x
日期:2004.10
A new efficient procedure has been proposed for the synthesis of 3-aryl-5-amino-1H-pyrazoles by reaction of α-chloro-β-arylacrylonitriles with hydrazine hydrate.