A new procedure for fusion of a five-membered ring. Building up of the naphtho[1,8-bc]furan system
作者:R. V. Tyurin、L. G. Minyaeva、V. V. Mezheritskii
DOI:10.1007/s11178-005-0010-8
日期:2004.9
Reactions of 2,6-di-tert-butylnaphthalene-1,5-diol with aminals derived from aromatic aldehydes afforded 2-aryl-4,8-di-tert-butyl-2H-naphtho[1,8-bc]furan-5-ols and 2-aryl-4,8-di-tert-butylnaphtho[1,8-bc]-furan-5-ones.
Building up of a peri-Hydroxynaphthoyl Fragment on the Core of 2H-Naphtho[1,8-bc] furan
作者:R. V. Tyurin、A. N. Antonov、L. G. Minyaeva、V. V. Mezheritskii
DOI:10.1007/s11178-005-0148-4
日期:2005.2
The reaction of 2-aryl-5-acetoxy-4,8-di-tert-butyl-2H-naphtho[1,8-bc]furan with dichloromethyl ethyl ether in the presence of aluminum chloride gave rise to 6-formyl derivatives of the title heterocyclic system, and at the use of aliphatic acids anhydrides in the presence of perchloric acid 6-acyl derivatives were obtained. The target products with a peri-hydroxycarbonyl group were obtained by the ester group elimination.