Results 21 to 30 of about 123,983 (385)
Frontiers in Chemistry, 2021 A novel and efficient C3-H vinylation reaction with quinoxalin-2(1H)-one as the substrate, in the presence of alkenes, under metal-free conditions, is reported herein.
Rongcai Ding +6 more
doaj +1 more source
Greener and sustainable method for alkene epoxidations by polymer-supported Mo(VI) catalysts [PDF]
, 2009 A polybenzimidazole supported Mo(VI) (PBI.Mo) catalyst has been prepared and characterised. The catalytic activities of the PBI.Mo catalyst in epoxidation of alkenes with tert-butyl hydroperoxide (TBHP) as an oxidant have been studied under different ...
Ambroziak, K. +3 more
core +2 more sources
Highly selective electrochemical hydrogenation of alkynes: Rapid construction of mechanochromic materials [PDF]
, 2019 Electrochemical hydrogenation has emerged as an environmentally benign and operationally simple alternative to traditional catalytic reduction of organic compounds.
Ge, Haibo, Li, Bijin
core +1 more source
Allylic alcohols and amines by carbenoid eliminative cross-coupling using epoxides or aziridines
Beilstein Journal of Organic Chemistry, 2021 α-Lithiated terminal epoxides and N-(tert-butylsulfonyl)aziridines undergo eliminative cross-coupling with α-lithio ethers, to give convergent access to allylic alcohols and allylic amines, respectively.
Matthew J. Fleming, David M. Hodgson
doaj +1 more source
Hydrofluorination of Alkenes: A Review
Chemistry – An Asian Journal, 2021 AbstractIn this minireview, we explore the different approaches used to perform the hydrofluorination reaction of alkenes. Contrary to other hydrohalogenation reactions, the hydrofluorination requires specific conditions due to the lower reactivity of HF.
Xavier Bertrand +2 more
openaire +5 more sources
A frustrated-Lewis-pair approach to catalytic reduction of alkynes to cis-alkenes [PDF]
, 2013 Frustrated Lewis pairs are compounds containing both Lewis acidic and Lewis basic moieties, where the formation of an adduct is prevented by steric hindrance.
Chernichenko, K. +2 more
core +1 more source
Direct C–H trifluoromethylation of di- and trisubstituted alkenes by photoredox catalysis
Beilstein Journal of Organic Chemistry, 2014 Background: Trifluoromethylated alkene scaffolds are known as useful structural motifs in pharmaceuticals and agrochemicals as well as functional organic materials.
Ren Tomita +3 more
doaj +1 more source
High quality anti-relaxation coating material for alkali atom vapor cells [PDF]
Optics Express, Vol. 18, Issue 6, pp. 5825-5830 (2010), 2009 We present an experimental investigation of alkali atom vapor cells coated with a high quality anti-relaxation coating material based on alkenes. The prepared cells with single compound alkene based coating showed the longest spin relaxation times which have been measured up to now with room temperature vapor cells.
arxiv +1 more source
ChemInform Abstract: Cyanamidoselenenylation of Alkenes.
ChemInform, 1987 AbstractReaction of the alkenes (I) and (VIII) with cyanamide (II) and N‐phenylselenophthalimide (III) produces the β‐phenylselenocyanamides (IV), (V), (IX), and (X).
Hernández, Rosendo +3 more
openaire +4 more sources
Relative reactivities of alkenes toward the diphenylmethyl cation [PDF]
, 1983 The relative reactivities of alkyl and phenyl substituted alkenes toward diphenylmethyl chloride/ZnCl2/Et2O in dichloromethane at −78°C have been determined by competition experiments.
Allen +21 more
core +1 more source