Using a test based on kinetic resolution the aphenylseleno-alkyllithium compounds 3 have been shown to undergo enantiomer equilibration at -105 °C with a rate comparable to that of their addition to aldehydes . At -125 C in Me-THF as solvent, the a-phenylseleno-alkyllithium compounds 10 were found t
On the stereochemical stability of α-sulfonylvinyllithium compounds
✍ Scribed by H. Kleijn; P. Vermeer
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 257 KB
- Volume
- 302
- Category
- Article
- ISSN
- 0022-328X
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In investigations reported from several laboratories a-sulfonyl carbanions generated from optically active precursors have been shown to be capable of maintaining their asymmetry. 1,2,3 The studies on a-sulfonyl free radicals which we wish to describe here were undertaken with the intention of dete
## Abstract A test based on kinetic resolution was applied to probe the configurational stability of various α‐substituted benzyllithium compounds 1. It was found that the trimethylsilyl‐ (1b), phenylsulfenyl‐ (1c), and the phenylselenyl‐substituted (1d) benzyllithium compounds enantiomerized more