Results 91 to 100 of about 16,757 (133)

Metal-free, regio- and stereoselective S-methylation/phenylation of allyl halides using sulfoxides as sulfenylating agent

Tetrahedron, 2017
Abstract A DCP promoted metal-free, regio and stereoselective S -methylation/phenylation of allyl halides using sulfoxides as sulfenylating agent is described. A variety of multifunctional allyl halides underwent S -methylation and S -phenylation by using dimethyl sulfoxide (DMSO) and diphenyl sulfoxide (DPSO) under the reaction conditions ...
Rakhee Choudhary, Rekha Bai, Pratibha Singh, Mahesh C. Sharma, Satpal Singh Badsara   +4 more
openaire   +1 more source

Cobalt(III)-Catalyzed and DMSO-Involved Allylation of 1,3-Dicarbonyl Compounds with Alkenes.

Journal of Organic Chemistry, 2022
Cobalt(III)-catalyzed allylation of 1,3-dicarbonyl compounds has been reported with in situ generated allyl reagents from alkenes and dimethyl sulfoxide (DMSO).
Xuefeng Xu, Yue Shi, Di Wang, Yanhua Ding, Shuyang Chen, Xu Zhang   +5 more
semanticscholar   +1 more source

Reactions of 1,2-Epoxy-2-Methyl-3-butene with Lithio Derivatives of Allylic Sulfoxides. Syntheses of 2,6-Dimethylocta-3,7-dien-2,6-diol and of 5,8-Dehydro-4-0xo-nerolidol

Synthetic Communications, 1981
Abstract Our preceding studies have shown that lithio carbanions of protected cyanohydrins can undergo Michael additions to an isoprenic sulfoxide to yield lithio derivatives of allylic sulfoxides1. These results have led us to investigate the utilization of these lithio sulfoxides for new simple syntheses of aliphatic terpenes by head-to-tail linking ...
Eric Guittet, Sylvestre Julia
openaire   +1 more source

ChemInform Abstract: REACTIONS OF 1,2‐EPOXY‐2‐METHYL‐3‐BUTENE WITH LITHIO DERIVATIVES OF ALLYLIC SULFOXIDES. SYNTHESES OF 2,6‐DIMETHYLOCTA‐3,7‐DIENE‐2,6‐DIOL AND OF 5,8‐DEHYDRO‐4‐OXONEROLIDOL

Chemischer Informationsdienst, 1982
AbstractDie aus dem Sulfoxid (I) in THF erzeugte Li‐Verbindung reagiert mit Isoprenoxid (II) zu einem Gemisch der Produkte (III), (IV) und (V).
E. GUITTET, S. JULIA
openaire   +1 more source

Cleavage of Catechol Monoalkyl Ethers by Aluminum Triiodide–Dimethyl Sulfoxide

Synthesis, 2018
Using eugenol and vanillin as model substrates, a practical method is developed for the cleavage o-hydroxyphenyl alkyl ethers. Aluminum oxide iodide (O=AlI), generated in situ from aluminum triiodide and dimethyl sulfoxide, is the reactive ether cleaving
Dayong Sang, Juan Tian, Xi-Feng Tu, Zhoujun He, Ming Yao   +4 more
semanticscholar   +1 more source

S-Alk(en)yl-Cysteine Sulfoxides in Allium Species Are Excellent Acrolein Scavengers: Implications for Secondary Antioxidants in Plants.

Bioscience, biotechnology and biochemistry
Reactive carbonyl species (RCS), such as acrolein (Acr), are generated through the degradation of lipid peroxides and exert cytotoxic effects. To identify natural RCS scavengers, we examined 80% ethanol extracts from 46 angiosperm species for Acr ...
Ayako Hada, C. Nozaki, Natsumi Tamura, Kenji Matsui, Yasumasa Matsuoka, Daisuke Shibata, Jun’ichi Mano   +6 more
semanticscholar   +2 more sources

Quantification of volatile metabolites derived from garlic in human breast milk.

Food Chemistry, 2019
Maternal garlic intake during pregnancy and the breastfeeding period has been reported to be associated with the potential of modulating later garlic acceptance in infants.
Laura Scheffler, Constanze Sharapa, A. Buettner   +2 more
semanticscholar   +1 more source

One-Pot Cleavage of Aryl Alkyl Ethers by Aluminum and Iodine in Acetonitrile

ChemistrySelect, 2019
Cleavage of aryl alkyl ethers was conducted in a one-pot onestage manner by mixing the ethers, aluminum and iodine in acetonitrile without the preparation of aluminum in situ triiodide in advance.
Juan Tian, Huaxin Yue, Peng Yang, Dayong Sang   +3 more
semanticscholar   +1 more source

Metabolism and pharmacokinetics studies of allyl methyl disulfide in rats

Xenobiotica; the fate of foreign compounds in biological systems, 2019
Yan Liu, Ang Li, Xiaoyan Jiang, Xiaosong Zhu, Xiuli Feng, Xiao Sun, Zhongxi Zhao   +6 more
semanticscholar   +1 more source

Hydrogen-bond-promoted palladium catalysis: allylic alkylation of indoles with unsymmetrical 1,3-disubstituted allyl acetates using chiral bis(sulfoxide) phosphine ligands.

Angewandte Chemie, 2013
Le Du, Peng Cao, J. Xing, Yazhou Lou, Liyin Jiang, Liangchun Li, J. Liao   +6 more
semanticscholar   +1 more source