Sign in to download full-size image Scheme 5.6.The use of the “forced” Wolff-Kishner reduction in the deoxygenation of hindered ketone derivatives of natural products. A particularly enlightening example of howsteric hindranceaffects the effectiveness of the reagent for carrying out the Wolff-Kishne...
With 1,4-diketones the distribution of the reduction products is dependent on the stereochemical situation of the two carbonyl functions.10 In acyclic derivatives, with no stereochemical interaction between the two carbonyl functions, the ketone groups are independently reduced to give methylene products...
[translate] aThis was followed by Red-Al reduction of the alkyne to selectively yield (E)-alkene 143 in 58% yield for the two steps. 这由炔的红色Al减少在58%出产量跟随 ()有选择性地产生E -烯烃143为二步。 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 ...
Click the structures and reaction arrows in sequence to view the 3D models and animations respectively R. Noyori, I. Tomino, Y. Tanimoto and M. Nishizawa,J. Am. Chem. Soc., 1984,106, 6709–6716. How useful was this page? Click on a star to rate it!
count noun there had been a reduction in the number of casualties 伤亡人数已经减少。 Example sentencesExamples If there's a sustained period of reduced car crime and a reduction in claims, I think we would expect to see some sort of reduction in your car insurance, or alternatively a slow-...
We have had some issues with this reaction reducing the alkene bond as well as the carbonyl. So far we have tried aluminium oxide with water and NaBh4with some limited success. NaBh4with Me-OH and aceta nitrile (with limited success in combination with above) ...
Fig. 1: Roles of aldehyde/ketone in methanol conversion over zeolites. a Methanol conversion process to produce fundamental chemicals. MTG, MTO, and MTA mean conversion of methanol to gasoline, olefins, and aromatics respectively. b Sources of aldehyde/ketone as well as their roles in methanol ...
Cu2O/ninhydrin was found to be an efficient catalyst system for the N-arylation of nitrogen-containing heterocycles with aryl and heteroaryl iodides, bromi... Yi-Zheng,Huang,and,... - 《Tetrahedron Letters》 被引量: 100发表: 2008年 Mild ketone formation via Ni-catalyzed reductive coupling of ...
Asymmetric ketone reduction by imine reductases. ChemBioChem 18, 253–256 (2017). Article CAS PubMed Google Scholar Thorpe, T. W. et al. One-pot biocatalytic cascade reduction of cyclic enimines for the preparation of diastereomerically enriched N-heterocycles. J. Am. Chem. Soc. 141, ...
Interactive 3D chemistry animations of reaction mechanisms and 3D models of chemical structures for students studying University courses and advanced school chemistry hosted by University of Liverpool