Regioselective 1,2-Diol Rearrangement by Controlling the Loading of BF<sub>3</sub>·Et<sub>2</sub>O and Its Application to the Synthesis of Related Nor-Sesquiterene- and Sesquiterene-Type Marine Natural Products
achieved by controlling the loading of BF3·Et2O. Its applicability is showcased by the divergent synthesis of austrodoral, austrodoric acid, and 8-epi-11-nordriman-9-one, as well as a formal synthesis of siphonodictyal B and liphagal. A new light is shed on piancol-type rearrangements that will be useful in diversity-oriented synthesis of related natural products.
Photoinduced Nitroarenes as Versatile Anaerobic Oxidants for Accessing Carbonyl and Imine Derivatives
作者:Joshua K. Mitchell、Waseem A. Hussain、Ajay H. Bansode、Ryan M. O’Connor、Dan E. Wise、Michael H. Choe、Marvin Parasram
DOI:10.1021/acs.orglett.3c02292
日期:2023.9.8
Herein, we report a protocol for the anaerobic oxidation of alcohols, amines, aldehydes, and imines promoted by photoexcited nitroarenes. Mechanistic studies support the idea that photoexcited nitroarenes undergo double hydrogen atom transfer (HAT) steps with alcohols and amines to provide the respective ketone and imine products. In the presence of aldehydes and imines, successive HAT and oxygen atom
在此,我们报告了光激发硝基芳烃促进醇、胺、醛和亚胺厌氧氧化的方案。机理研究支持光激发硝基芳烃与醇和胺经历双氢原子转移(HAT)步骤以提供各自的酮和亚胺产物的观点。在醛和亚胺存在的情况下,连续发生 HAT 和氧原子转移 (OAT) 事件,分别产生羧酸和酰胺。这种转变适用于连续光流设置,从而缩短了反应时间。
Reactions of α-Ketols Derived from Tertiary Acetylenic Carbinols. I. Preparation and Low Pressure Hydrogenation<sup>1</sup>
作者:G. F. HENNION、E. J. WATSON
DOI:10.1021/jo01099a002
日期:1958.5
Kotani,Eiichi; Kobayashi, Shigeki; Ishii, Yoko, Chemical and pharmaceutical bulletin, 1984, vol. 32, # 11, p. 4281 - 4291