Notes - Addition of Alkyl Orthoformates to Olefin Oxides
β Scribed by Dermer, O.; Slezak, Frank
- Book ID
- 121328925
- Publisher
- American Chemical Society
- Year
- 1957
- Tongue
- English
- Weight
- 294 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0022-3263
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## Abstract The reaction of trisβcrotylβboron with vinylic olefins in the presence of triethylβaluminium, results in the addition of an Ξ±βmethylallyl group and an aluminium atom to the double bond, as indicated by the hydrolysis products. The stereochemical aspect of the reaction is discussed and a
**The presence of a negative partial charge on the benzylic carbon atom in the transition state** __(1)__ can be deduced from the experimentally determinable Hammett Ο± values. Alkyl radicals R^Λ^ are accordingly seen to develop nucleophilic properties during addition to olefins. equation image