Iron-Catalyzed C(Sp<sup>3</sup>)–H Borylation, Thiolation, and Sulfinylation Enabled by Photoinduced Ligand-to-Metal Charge Transfer
作者:Jia-Lin Tu、Ao-Men Hu、Lin Guo、Wujiong Xia
DOI:10.1021/jacs.3c01082
日期:——
(LMCT) process. These reactions exhibit remarkably broad substrate scope (>150 examples in total), and most importantly, all of these three reactions show unconventional regioselectivity, with the occurrence of C(sp3)–H borylation, thiolation, and sulfinylation preferentially at the distal methyl position. The procedures are operationally simple and readily scalable and provide access to high-value products
Synthesis, structure and comparative stability of β-hydrazono, oximino methyl ether and imino boronates
作者:Richard J. Mears、Helen E. Sailes、John P. Watts、Andrew Whiting
DOI:10.1039/b004573j
日期:——
prepared by the sequential lithiation of the corresponding methyl hydrazone or oxime methyl ether, followed by reaction with an iodomethylboronate ester, typically in the form of the pinacol ester. The resulting products have contrasting hydrolytic stabilities. β-Hydrazono boronates are highly sensitive to intramolecularly catalysed hydrolysis, providing the corresponding β-keto boronates in generally high