Ritter反应 在强酸环境下醇和腈反应制备酰胺的反应。叔碳或苄位的碳正离子比较稳定,如果体系中有合适的亲核试剂,碳正离子可以与这些亲核试剂反应。利用这一点,如果在体系中加入腈,酰胺,叠氮等亲核试剂做胺源,可以制备各种胺或胺的衍生物。腈类化合物与碳正离子反应生成N-烷基酰胺的反应统称为Ritter type反应,实际...
Ritter反应 | 在强酸环境下,醇和腈反应可制备酰胺。叔碳或苄位的碳正离子比较稳定,如果体系中有合适的亲核试剂,碳正离子可以与这些亲核试剂反应。利用这一点,如果在体系中加入腈,酰胺,叠氮等亲核试剂做胺源,可以制备各种胺或胺的衍生物。腈类化合物与碳正离子反应生成N-烷基酰胺的反应统称为Ritter type反应,实际...
Ritter-typereactionN-isopropylacrylamideAcrylonitrileIsopropylalcoholMFIzeolitesCatalytic reaction of acrylonitrile (AN) with isopropyl alcohol (IPA) to N-isopropyl acrylamide has been studied using MFI zeolites in a solid鈥搇iquid reaction system. Turnover number (TON), which was defined as the number ...
进而确定最佳的反应条件为:采用8 mol%TAC 1作为催化剂,n-Bu4NPF6作为电解质,选择碳毡阳极 (carbon felt anode)与铂阴极,乙腈作为反应溶剂,同时加入TFA与水,在H型隔膜电解槽 (H-type divided cell, Ecell= 2.2 V, Eanode= 1.6 V vs SCE)以及通过CFL (compact fl...
A ritter-type reaction: Direct electrophilic trifluoromethylation at nitrogen atoms using hypervalent iodine reagents. Niedermann, Katrin,Früh, Natalja,Vinogradova, Ekaterina,Wiehn, Matthias S.,Moreno, Aitor,Togni, Antonio. Angewandte Chemie - International Edition . 2011...
6.07Ritter-TypeReactionsRBishopUniversityofNewSouthWalesSydneyNSWAustraliar014ElsevierLtd.Allrightsreserved.6.07.1TheRitterAmideReaction396.07.1.1ReactionMechanism406.07.1.ReactionConditions416.07.1.3TheNitrileComponent436.07.1.4TheCarbeniumIonSource486.
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Synthesis of Carbasugars from Aldonolactones: Ritter-Type Epoxide Opening of Polyhydroxylated AminocyclopentanescarbohydratesUsing the cis-fused cyclopentane-1,4-lactone, 1(R),5(S)-7(R),8(R)-dihydroxy-2-oxabicyclo[3.3.0]oct-3-one (1), as starting material, 5-deoxycarba-*-L-xylo-hexo...
The Ritter-type amination of a tertiary C-H bond using iodic acid (HIO 3 ) as an oxidant, in the presence of N-hydroxyphthalimide (NHPI) is reported. This operationally simple method is conducted under metal-free conditions, is scalable, and efficiently provides valuable α-tertiary amine deri...
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