NSFC, Grant !No. 29875001;National ninth five-year Sci. & Tech. program of China, Grant !No. 96-903-02-02.
(+)-Sesamin was found in Semen Cuscutae for the first time. A rapid and simple approach for the analysis of(+)-sesamin in different sources of Semen Cuscutae is proposed, which used GC-FID for the determination of(+)-...
The reaction of phenacyl benzoate derivatives with acetamide at about 140°in the presence of BF3 catalyst gave 2-aryl-4-phenyloxazoles. This method can be applied to the preparation of 2-alkyl-4-phenyloxazoles as well.
Nine 2-axyL4-phenyloxazoles ale prepared fromphenacyl benzoates and acetandde in boiling xylene under the actionof boron fluoride as catalyst. By this improved method the oxazoles areobtained as single products with y...