JIM;Cathy;K;W;LAM;Jacky;W;Y;HAEUSSLER;Matthias.Amine-catalyzed polycyclotrimerization of arylene bipropiolate:A metal-free and regioselective route to hyperbranched polymer.Science in China(Series B:Chemistry).2008Amine-catalyzed polycyclotrimerization of arylene bipropiolate:A metal-free and ...
%, based on the total weight of the composition, of a tertiary amine which has a 5- or 6-membered aliphatic nitrogen heterocycle, said composition containing less than 1 wt.% of a primary amine. The composition can be used as an embedding medium for microscopy and as an adhesive and to...
J. Wei, P. Wang, Q. Jia, J. Huang, Z. Du, K. Zhang, J. Wang, Amine-catalyzed cascade synthesis of 3,4-diunsubstituted coumarins, European Journal of Organic Chemistry (2013) 4499e4502.WeiJ,WangP,JiaQ,etal.Amine catalyzedCascadeSynthesisof3,4 DiunsubstitutedCoumarins[J].EurJOrgChem...
Amine-catalyzed direct Diels–Alder reactions of α,β-unsaturated ketones with nitro olefins.Amine-catalyzed direct Diels–Alder reactions of α,β-unsaturated ketones with nitro olefins.aminescatalysiscyclohexanonesDiels–Alder reactionsenaminesMichael reactionsAmine...
A tertiary amine-catalyzed formal (3+n) annulation of 2-(acetoxymethyl)buta-2,3-dienoate with 1,n-binucleophiles has been developed, which provides a facile entry to heterocyclic compounds. The mechanism, involving tandem S(N)2'-S(N)2' substitution and Michael addition, has also been estab...
suchthatthemechanismofamine-catalyzedhydrolysisis dependentmostlyontheambientpHconditionsaswellasthetypeofamine.Therelevanceofourresultsto biologicalsilicaprecipitationisdiscussed. Introduction Currentsol-gelroutesforsynthesisofmesoporoussilicates, suchasMCM-41,utilizeorganosilicateprecursors,involve templatingbyself-...
Supplementary Material (ESI) for Chemical Communications This journal is (c) The Royal Society of Chemistry 2010 Supporting Information Amine-Catalyzed (3+n) Annulations of 2-(Acetoxymethyl)buta-2,3-dienoates with 1,n-Bisnucleophiles (n = 3-5) Chaolong Li, Qiongmei Zhang and Xiaofeng Tong*...
超薄的睡觉的Sophie系列。[translate] aLuxembourg[translate] a亲属称谓语反映着婚姻、家庭中人与人之间的社会关系, 正在翻译,请等待...[translate] aPrimary Amine Catalyzed Biginelli Reaction for the Enantioselective Synthesis 主要胺物摧化的Biginelli反应为Enantioselective综合[translate]...
Cu(I)-catalyzed asymmetric chlorination of β-keto esters in the presence of chiral phosphine-schiff base type ligands Chiral phosphine-Schiff base type ligand L8 prepared from (R)-()-2-(diphenylphosphino)-1,1'-binaphthyl-2'-amine was found to be a fairly effective ligand f... Jia-Jun,...
reported that triethylamine did not catalyze the racemization of an imidazoline derivative of alanine.2) In this study, the racemization of imi dazoline derivatives was measured in the presence of various amines, and we wish to present a new mechanism for the amine catalyzed racemization of ...