| 摘要 |
1338812 Norbornene derivatives UPJOHN CO 22 July 1971 [24 Aug 1970] 17337/73 Divided out of 1338811 Heading C2C Novel compounds VII in which R is 1-8 C alkyl, R 1 is 1-4 C alkyl, R 2 is H or 1-4 C alkyl and R 4 and R 5 are H, 1-4 C alkyl, or phenyl; with the proviso that only one of R 4 and R 5 is phenyl are prepared by electrolysis of compounds VI in water/pyridine containing a t-amine. Compounds VIII may be prepared by oxidation of compounds VII with aqueous alkali metal permanganate and periodate. Compounds VIII may be esterified to give compounds IX The compounds IX may be reduced to give compounds X Compounds X may be reacted with an alkane-, alkylbenzene- or benzenesulphonyl halide, alkanoyl, benzoyl or p-toluoyl halide or anhydride or a halogenating agent to give compounds XI in which X 2 is Cl, Br, I, C 6 H 5 SO 2 O-, alkanesulphonyloxy, alkylbenzenesulphonyloxy or -OCOR 6 where R 6 is 1-8 C alkyl, phenyl or p-tolyl. Compounds XI may be reacted with dilute aqueous acid to give compounds XII |
