Metal carbenoida are more appropriate reagent6 for the convereion of alkenee to cyclopropanee then the unselective free Cl%2 with ita tendency for CHineertion (1). Halomethyllithiur has not been ueed exteneively for thie purpose. Thie reagent, generated from dibromomethane and methyllithium in ether
β¦ LIBER β¦
Lithium Carbenoids
β Scribed by Manfred Braun
- Book ID
- 101978166
- Publisher
- John Wiley and Sons
- Year
- 2005
- Weight
- 8 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0931-7597
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## Abstract An investigation into the mechanism and stereochemistry of chiral lithiumβcarbenoidβpromoted cyclopropanation reactions by using density functional theory (DFT) methods is reported. Previous work suggested that this type of cyclopropanation reaction may proceed by competition between a