| 摘要 |
1,166,557. Substituted allyl alcohols. ROUREBERTRAND FILS & JUSTIN DUPONT S.A. DES ETABS. 7 March, 1967 [30 March, 1966], No. 10619/67. Heading C2C. Compounds of formula CH 2 : CR<SP>3</SP>CR<SP>1</SP>R<SP>2</SP>OH, where R<SP>1</SP> and R<SP>3</SP> are H or hydrocarbyl and R<SP>2</SP> is hydrocarbyl substituted by OH (possibly etherified or esterified), or oxo or R<SP>2</SP>R<SP>2</SP> with the adjacent C atoms form a polycyclic ring system, are prepared by reacting an epoxide with a compound AlR<SP>4</SP>R<SP>5</SP>R<SP>6</SP>, where R<SP>4</SP>, R<SP>5</SP> and R<SP>6</SP> are alkyl or alkenyl, or R<SP>5</SP> is H, and hydrolysing the product. Where R<SP>2</SP> in the starting material contains an oxo group, this may be in the form of a cyclic ketal with ethylene glycol, and subsequently the protecting group is removed by hydrolysis. Epoxides are prepared using monoperphthalic acid. |
