Michael addition of formaldehyde dimethylhydrazone to nitroolefins. A new formyl anion equivalent
✍ Scribed by Jose-María Lassaletta; Rosario Fernández
- Book ID
- 104225344
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- French
- Weight
- 243 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
Ab#&a& Fmmklehyde dimehyihydramm mdily ndds to mrplc nitm-olefim UI the absence of baee giving P-nitrodirasthylh*e5 m very high yields. The c5mqmdbg B-nitfmidehydes can be obbkd by 07molysis.
📜 SIMILAR VOLUMES
## Abstract A new chiral catalyst is presented for the asymmetric Michael addition of ketones to nitroolefins.
Protected S-pyroglutamic acid can be deprotonated specifically at the y-position. The resulting enolate can be converted into y-carboxyglutamic acid in optically pure form. The naturally occurring aminoacid r\_carboxyglutamtc acid (1; Gla) is a constituent of prothrombin and other proteins.1 The nat