用相对温和的二乙氨基三氟化硫/四氢呋喃 (DAST–THF) 系统氟化肟,得到亚氨基氟化物。这些化合物被分离出来,并通过 X 射线单晶结构分析确定了它们的结构。亚氨基氟化物与各种亲核试剂的反应有效地以高产率提供酰胺、脒、硫代酰胺和胺衍生物。此外,由肟原位生成亚氨基氟化物的一锅法反应也适用于这些产品的高效合成。肟立体化学和酸不稳定保护基在该系统中保持完整。
Chemo-, regio-, and enantioselective synthesis of allylic nitrones <i>via</i> rhodium-catalyzed addition of oximes to allenes
作者:Yu-Hsuan Wang、Bernhard Breit
DOI:10.1039/c9cc03391b
日期:——
first chemo-, regio-, and enantioselective rhodium-catalyzed addition of oximes to allenes is reported. Using a Rh(I)/Josiphos catalyst system under mild conditions, the construction of allylic C–N bonds instead of C–O bonds was achieved. This method permits the atom-economic synthesis of branched allylic nitrones in good to quantitative yields with excellent enantioselectivities.
<b>Some Factors Affecting the Site of Alkylation of Oxime Salts</b>
作者:Peter A. S. Smith、Jerry E. Robertson
DOI:10.1021/ja00866a027
日期:1962.4
Muenchmeyer, Chemische Berichte, 1887, vol. 20, p. 509
作者:Muenchmeyer
DOI:——
日期:——
A Facile, Catalytic Deoximation Method Using Potassium Bromide and Ammonium Heptamolybdate in the Presence of Hydrogen Peroxide in an Aqueous Medium
作者:Nemai Ganguly、Sujoy Barik
DOI:10.1055/s-2008-1032035
日期:2008.2
procedure for the cleavage of a wide range of ketoximes and aldoximes to the corresponding carbonyl compounds in an aqueous medium using catalytic amounts of potassium bromide and ammonium heptamolybdate tetrahydrate in combination with 30% hydrogenperoxide is described.
mild diethylaminosulfur trifluoride/tetrahydrofuran (DAST–THF) system affords imidoyl fluorides. These compounds were isolated, and their structures were confirmed by X-ray single-crystal structure analysis. Reaction of imidoyl fluorides with various nucleophiles efficiently afforded amides, amidines, thioamides, and amine derivatives in high yields. Furthermore, one-pot reaction of in situ generated
用相对温和的二乙氨基三氟化硫/四氢呋喃 (DAST–THF) 系统氟化肟,得到亚氨基氟化物。这些化合物被分离出来,并通过 X 射线单晶结构分析确定了它们的结构。亚氨基氟化物与各种亲核试剂的反应有效地以高产率提供酰胺、脒、硫代酰胺和胺衍生物。此外,由肟原位生成亚氨基氟化物的一锅法反应也适用于这些产品的高效合成。肟立体化学和酸不稳定保护基在该系统中保持完整。