A highly active species prepared from Zn-CH2Br2-Tic14 reacted instantaneously with aldehydes and ketones to give methylenated products with exceptional selectivity. Methylenation of carbonyl derivatives to give olefins, i.e. R2C=O + R2C=CH2, by means of the Wittiq reaction' is one of the most useful
β¦ LIBER β¦
Effective methods of carbonyl methylenation using CH2I2-Zn-Me3Al and CH2Br2-Zn-TiCl4 system
β Scribed by Kazuhiko Takai; Yuji Hotta; Koichiro Oshima; Hitosi Nozaki
- Book ID
- 104245814
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- French
- Weight
- 315 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0040-4039
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