SOCl<sub>2</sub>-Catalyzed Meyer–Schuster Rearrangement of 3°-Propargylic Alcohols: Synthesis of Densely Arene-Substituted Pyrazolines Bearing Quaternary Centers from α,β-Unsaturated Carbonyl Compounds and Arylhydrazines
作者:Ram Singh Jat、M. Bhanuchandra
DOI:10.1021/acs.joc.3c01387
日期:2023.9.15
Meyer–Schuster rearrangement of 3°-propargyl alcohol to the corresponding α,β-unsaturatedcarbonylcompoundsunder SOCl2 catalysis has been reported. Terminal and internal propargyl alcohols efficiently participated in the reaction. Furthermore, we have demonstrated the synthetic utility of conjugated carbonylcompounds to access densely arene-substituted pyrazolines bearing quaternary centers by reacting
A method for aliphatic C-H bond oxidation of oximes and hydrazones mediated by 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO) has been developed, which enables the concise assembly of substituted isoxazole and pyrazole skeletons.
REAMES D. C.; HARRIS C. E.; DASHER L. W.; SANDIFER R. M.; HOLLINGER W. M.+, J. HETEROCYCL. CHEM. <JHTC-AD>, 1975, 12, NO 4, 779-781
作者:REAMES D. C.、 HARRIS C. E.、 DASHER L. W.、 SANDIFER R. M.、 HOLLINGER W. M.+