LITHIUM (ALPHA-METHYLBENZYL)ALLYLAMIDE - A DIFFERENTIALLY PROTECTED CHIRAL AMMONIA EQUIVALENT FOR THE ASYMMETRIC-SYNTHESIS OF BETA-AMINO ACIDS AND BETA-LACTAMS
The addition products from the highly stereoselective conjugate additions of lithium (αS)-(α-methylbenzyl)allylamide to α,β-unsaturated tert-butyl esters are efficiently deallylated with tris(triphenylphosphine)rhodium(l) chloride and converted, after transesterification to the methyl esters and cyc...
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| Format: | Journal article |
| Published: |
1995
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