A visible-light photoinduced charge-transfer complex promoted the ring opening of <i>N</i>-alkyl-4-piperidinols
作者:Ying Fu、Chun-Zhao Shi、Qin-Shan Xu、Zhengyin Du、Congde Huo
DOI:10.1039/d0gc00196a
日期:——
A visible-light photoinduced ringopening of N-alkyl-4-piperidinols under mild conditions has been achieved. The reaction sequence involves a visible-light-induced charge-transfer complex, which promoted the S–Cl bond cleavage of sulfonyl chlorides. The generated sulfonyl radical further reacts with N-alkyl-4-piperidinol cation radicals to achieve C–N and C–C bond cleavages to yield homoallylamine
Metal-Free C–C Coupling of an Allenyl Sulfone with Picolyl Amides to Access Vinyl Sulfones via Pyridine-Initiated In Situ Generation of Sulfinate Anion
作者:Humair M. Omer、Peng Liu、Kay M. Brummond
DOI:10.1021/acs.joc.0c00788
日期:2020.6.19
Vinyl sulfones are privileged motifs known for their biological activity and synthetic utility. Synthetic transformations to efficiently access high-value compounds with these motifs are desired and sought after. Herein, a new procedure is described to form vinyl sulfone-containing compounds by selective functionalization of the C(sp3)–H bond adjacent to the pyridine ring of pharmacologically prevalent
A convenient and efficient method for the synthesis of various structurally functionalized sulfinates shows good substrate generality of alcohols and sodium sulfinates.