Citation: Fu She HAN, Jian Qiang QU, Xin ZHANG, Meng Xian DING, Lian Xun GAO. Resolution of 3,3'-Dioxo-1,1'(3H,3'H)spirobi[isobenzofuran] -5,6,5'6'-tetracarboxylic acid and Optically active Polyimides thereof[J]. Chinese Chemical Letters, ;2000, 11(12): 1077-1080. shu

Resolution of 3,3'-Dioxo-1,1'(3H,3'H)spirobi[isobenzofuran] -5,6,5'6'-tetracarboxylic acid and Optically active Polyimides thereof

PCLCC, State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 22 May 2000

3,3'-Dioxo-1,1'(3H,3'H)spirobi[isobenzofuran]-5,6,5',6'-tetracarboxylic acid 1 was resolved successfully and the corresponding optically active polyimides PI were synthesized. The properties of the optically active PI and the racemic one were investigated. The results showed that the specific rotation of (-)-PI was about two times to that of the (+)-PI, and the regularity of the optically active PI was higher than that of the racemic one.
- Resolution,
- spirodilactone tetracarboxylic acid,
- optically active polyimide
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