| 摘要 |
Bis-phosphephins of formula (I) are new: Ar-AR = biphenyl, 1,1'-binaphthyl or 1-phenylnaphthyl; R<1> = F, 1-8 C alkyl or 1-8 C alkoxy; m = 0,1,2,3 or 4; R<2>, R<3> = H, 1-20 C alkyl, 6-20 C aryl, 7-20 C aralkyl, 7-20 C alkaryl or 3-20 C cycloalkyl; R<4> = 1-10 C alkylene, opt. with ether 0 atoms and N-alkyl gps. in the chain; 3-10 C cycloalkylene; 8-22 C arylene-bisalkyl; 6-10 C arylene; each CR<2>R<3> gp. is adjacent to AR-AR bond |
