Stereoselectivity of the reduction of carvone and dihydrocarvone by suspension cells of Nicotiana tabacum
作者:Toshifumi Hirata、Hiroki Hamada、Tadashi Aoki、Takayuki Suga
DOI:10.1016/0031-9422(82)85179-0
日期:——
Abstract The biotransformation of foreign substrates with suspensioncells of Nicotianatabacum was tested with (4 R )-(−)- and (4 S )-(+)-carvones, (
摘要 用 (4 R )-(-)- 和 (4 S )-(+)-香芹酮测试了烟草悬浮细胞对外来底物的生物转化,(
Organic reactions in a solid matrix-VII sodium on alumina : A convenient reagent for reduction of ketones, esters and oximes
作者:Satendra Singh、Sukh Dev
DOI:10.1016/s0040-4020(01)80249-0
日期:1993.1
Sodium dispersed on alumina is described and evaluated as a convenient off-the-shelf reagent (in a wax-coated form) for reduction of ketones, esters and oximes. While isopropanol is the preferred proton donor for the reduction of ketones and oximes, t-butanol is the alcohol of choice for the reduction of esters.
The present disclosure relates to methods of carbon-carbon bond fragmentation.
本公开涉及碳-碳键断裂的方法。
Metabolism of carveol and dihydrocarveol in Rhodococcus erythropolis DCL14
作者:Mariët J. van der Werf、Anneke M. Boot
DOI:10.1099/00221287-146-5-1129
日期:2000.5.1
assimilates all stereoisomers of carveol and dihydrocarveol as sole source of carbon and energy. Induction experiments with carveol- or dihydrocarveol-grown cells showed high oxygen consumption rates with these two compounds and with carvone and dihydrocarvone. (Dihydro)carveol-grown cells of R. erythropolis DCL14 contained the following enzymic activities involved in the carveol and dihydrocarveol degradation
Diastereoselective Hydrogenation of Tetrasubstituted Olefins using a Heterogeneous Pt‐Ni Alloy Catalyst
作者:William A. Swann、Anish Yadav、Nicholas B. Colvin、Nicole K. Freundl、Christina W. Li
DOI:10.1002/anie.202317710
日期:2024.5.6
A Pt−Ni alloy nanocatalyst is developed for the diastereoselective directed hydrogenation of tetrasubstituted olefins in a cyclopentene scaffold. For this substrate class, established homogeneous catalysts generate hydrogenolysis side products, and commercial heterogeneous catalysts are not stereoselective. Uniform alloying of the noble metal and base metal combined with high catalyst dispersion is