supported by the Natural Science Foundation of Anhui Provincial Education Department (No. KJ2010B463);the Key Subject Program of Jiangsu Province (No. S1109001)
The title compound of 4-(2-methylene-1-ethyl-3,3-dimethylindoline-2'-yl)-6,8-dibro-mo-1'-ethyl-3',3'-dimethylspiro[3,4-dihydro-2H-1-benzopyran-2,2'-indoline],C33H36Br2N2O,as a dicondensed spiropyran(DC) has b...