作者:Po-Yuan Chen、Tzu-Pin Wang、Michael Y. Chiang、Keng-Shian Huang、Cherng-Chyi Tzeng、Yi-Long Chen、Eng-Chi Wang
DOI:10.1016/j.tet.2011.04.070
日期:2011.6
water in the presence of DABCO at roomtemperature gave 3-hydroxy-1-(2-hydroxylphenyl)-3-arylpropan-1-ones (3a–i) as intermediates. Followed by an intramolecular dehydration of the 3a–i with the modified Mitsunobu’s reaction, the target flavanones (4a–i) were obtained. Moreover, the reaction of 1 and 2 at the same conditions but at reflux gave flavanones in onepot with good yields.