Lanthanum(III) Triflate Catalyzed Direct Amidation of Esters
摘要:
Lanthanum trifluoromethanesulfonate is an effective single-component catalyst for synthesizing a variety of amides directly from esters and amines under mild conditions. Highly selective amidation of esters and amines, as well as catalyst-controlled amidation of esters, demonstrated the effectiveness of the catalyst system.
Intra vs intermolecular amidoalkylation of aromatics
作者:D. Ben-Ishal、I. Sataty、N. Peled、R. Goldshare
DOI:10.1016/s0040-4020(01)89976-2
日期:1987.1
Three types of intramolecular amidoalkylation reactions of aromatics, two endotrigonal and one exotrigonal (I, II, III), leading to indolone, N-acylisoquinolines, isoquinolone and benzazepinone derivatives were studied. In the presence of external aromatic nucleophiles competing intermolecular amidoalkylations were observed (1 → 2,13 → 14). The mechanism and the synthetic limitations of the three types
The use of polyhedral oligomeric silsesquioxane (POSS) as a soluble support for organic synthesis: A case study with a POSS-bound isocyanate scavenger reagent
作者:Mark York、Richard A. Evans
DOI:10.1016/j.tetlet.2010.07.015
日期:2010.9
The use of polyhedral oligomeric silsesquioxane (POSS) as a solublesupport in organic synthesis is reported. A POSS-bound isocyanate was readily synthesised in one step from commercially available starting materials and was isolated in high yield and purity by simple filtration. It was found to perform well as a scavenger for excess amine in the solution phase synthesis of amides and sulfonamides
A novel selective ring-opening amination of isochromans and tetrahydroisoquinolines have been developed by employing molecular editing strategy. This chemistry offers a practical method to access various valuable compounds from easily available starting materials.
Palasz, Peter D.; Utley, James H. P.; Hardstone, J. David, Journal of the Chemical Society. Perkin transactions II, 1984, # 4, p. 807 - 814
作者:Palasz, Peter D.、Utley, James H. P.、Hardstone, J. David
DOI:——
日期:——
Palasz, Peter D.; Utley, James H. P.; Hardstone, J. David, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1984, vol. 38, # 4, p. 281 - 292
作者:Palasz, Peter D.、Utley, James H. P.、Hardstone, J. David