Metal-Free, Aerobic Dioxygenation of Alkenes Using Hydroxamic Acids
作者:Valerie A. Schmidt、Erik J. Alexanian
DOI:10.1002/anie.201000843
日期:2010.6.14
One dioxygenation please, hold the metal: In the presence of either oxygen or air as the sole oxidant and external oxygen atom source, a variety of unsaturated hydroxamicacids afford cyclic hydroxamates that are readily converted into 1,2‐diols, with the potential for high levels of reaction stereocontrol.
New Synthesis of 2-Alkyl-4,4-dimethyl-5-halomethylisoxazolidin-3-ones <i>via</i> Intramolecular Halocyclization of <i>N</i>-Alkyl-2,2-dimethyl-3-butenohydroxamic Acids
作者:Hyoung Rae Kim、Seung Il Shin、Hyun Ju Park、Dong Ju Jeon、Eung K. Ryu
DOI:10.1055/s-1998-1782
日期:1998.7
N-Alkyl-2,2-dimethyl-3-butenohydroxamic acids and their cyclic derivatives were halocyclized by iodine monochloride, N-bromosuccinimide, or N-chlorosuccinimide to afford the corresponding 2-alkyl-4,4-dimethyl-5-halomethylisoxazolidinones and 5-membered ring fused isoxazolidinones in excellent yields.
Vinylogous Wolff rearrangement. 4. General reaction of .beta.,.gamma.-unsaturated .alpha.'-diazo ketones
作者:Amos B. Smith、Bruce H. Toder、Stephen J. Branca
DOI:10.1021/ja00326a018
日期:1984.7
Preparation et transposition de Wolff vinylogue de 21 α'-diazocetones β,γ insaturees acycliques et monocycliques. Formation d'esters γ,δ-insatures. La transposition est catalysee par CuSO 4 , Cu(AcAc) 2 ou Cu(OTf) 2 en presence de divers alcools; mecanisme
制备和转位 de Wolffvinylogue de 21 α'-diazocetones β,γ insaturees acycliques et monocycliques。形成 d'esters γ,δ-insatures。La transposition est catalysee par CuSO 4 , Cu(AcAc) 2 ou Cu(OTf) 2 en存在de divers alcools;机制
Lewis acid promoted decomposition of unsaturated .alpha.-diazo ketones. 1. An efficient approach to simple and annulated cyclopentenones
作者:Amos B. Smith、Bruce H. Toder、Stephen J. Branca、R. Karl Dieter
DOI:10.1021/ja00398a021
日期:1981.4
SMITH, A. B. ,, III;TODER, B. H.;BRANCA, S. J., J. AMER. CHEM. SOC., 1984, 106, N 14, 3995-4001