The stereochemical course of the intramolecular carbenoid cyclopropanation reaction has been studied for the epimeric carbenoids 12a and 12b. In these reactions the terl-butyldimethylsilyloxy substituent serves as an internal stereochemical reference point. It was found that 12b cyclizes rapidly at
The stereochemistry of the cyclopropane-allene conversion
β Scribed by W.M. Jones; John W. Wilson Jr.
- Book ID
- 108383223
- Publisher
- Elsevier Science
- Year
- 1965
- Tongue
- French
- Weight
- 203 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
An allene of appropriate substitution has four distinguishable attitudes of presentation to a solid catalyst (Ip-IVp) leading by 1,2-a-addition to four different olefins (I-IV). (Received in UK 30 June 1967) on approach of the oriented allene to the catalyst might be expected to be important whether
Because of the current interest2 in the stereochemistry of electrophilic aliphatic substitution, we with to report the results of reaction of 7,7-dimethylnorcarane, I, and norcarane with mercuric acetate. Cleavage of 1 in methanol (30 hrs, 25') after filtration to remove mercurous acetate (10%) and