Spiropyrans and spirooxazines 5. Synthesis of photochromic 8-(4,5-diphenyl-1,3-oxazol-2-y1)-substituted spiro[indoline-benzopyrans]
作者:N. A. Voloshin、E. B. Gaeva、A. V. Chernyshev、A. V. Metelitsa、V. I. Minkin
DOI:10.1007/s11172-009-0024-4
日期:2009.1
Photochromic spiro[indoline-benzopyrans] containing 4,5-diphenyloxazolyl group at position 8 of the benzopyran fragment have been obtained. New diphenyloxazolyl-substituted spiropyrans manifest considerably higher thermal stability of the merocyanine isomers than their naphthopyran analogs.