| 摘要 |
PCT No. PCT/FR98/00290 Sec. 371 Date Aug. 5, 1999 Sec. 102(e) Date Aug. 5, 1999 PCT Filed Feb. 16, 1998 PCT Pub. No. WO98/37060 PCT Pub. Date Aug. 27, 1998The invention relates to a preparation process for 4-cyano-4'-hydroxybiphenyl, said process comprising the protection of the hydroxy group of 4-phenyl-phenol, acylation of the protected 4-phenyl-phenol group, conversion of the resulting ketone into an acid, amidification of the acid thus obtained, dehydration of the resulting amide and deprotection of the hydroxy group. |
