Supported by Higher Education Commission of Pakistan,the National Basic Research Program of China(No.2003CB114402);the National Natrual Science Foundation of China(No.20672062);the Tianjin Natural Science Foundation(No.07JCYBJC01200).
3,5-Dimethoxyhomophthalic acid was synthesized in four steps from 3,5-dimethoxycinnamic acid via a series of reactions including cyclization of 3-(3',5'-dimethoxyphenyl)propionic acid to 5,7-dimethoxy-1-indanone a...
We are grateful to the National Basic Research Program (No. 2003CB114402);the National Natural Science Foundation of China (Nos. 20476098 and 20676123) ;Wenzhou University Post-graduate Innovation Foundation (No. YCX0515) for financial support.
2,3-Dihydro-2-aryl-4(1H)-quinazolinones were prepared in good yields via condensation of o-aminobenzamide with aldehydes promoted by a catalytic amount of Sc(OTf)3 under mild conditions.