Enantioselective syntheses of 3-substituted 4-(alkoxycarbonyl)-2-azetidinones from malic acid
作者:Marvin J. Miller、Joginder S. Bajwa、Phillip G. Mattingly、Kathleen Peterson
DOI:10.1021/jo00146a020
日期:1982.12
[EN] BACTERIAL CELLS WITH IMPROVED TOLERANCE TO ISOBUTYRIC ACID<br/>[FR] CELLULES BACTÉRIENNES À TOLÉRANCE AMÉLIORÉE POUR L'ACIDE ISOBUTYRIQUE
申请人:UNIV DANMARKS TEKNISKE
公开号:WO2017194696A1
公开(公告)日:2017-11-16
Bacterial cells genetically modified to improve their tolerance to certain commodity chemicals, such as isobutyric acid and related compounds, and methods of preparing and using such bacterial cells for production of isobutyric acid and related compounds.
Enantioselective Claisen Rearrangements: Development of a First Generation Asymmetric Acyl-Claisen Reaction
作者:Tehshik P. Yoon、David W. C. MacMillan
DOI:10.1021/ja015612d
日期:2001.3.1
The development of an enantioselective catalytic Claisenrearrangement remains an important yet elusive goal in chemical synthesis. With this objective in mind, we recently reported the acyl-Claisen rearrangement, a Lewis acid-catalyzed variant of the Bellus reaction that utilizes acid chlorides and allylic amines in the stereoselective synthesis of ɑ,β-disubstituted-y,δ-unsaturated carbonyls (eq 1)