Complementary Strategy for Regioselective Synthesis of Diverse β-Hydroxysulfones from Thiosulfonates
作者:Soobin Son、Pranab K. Shyam、Hyowon Park、Ilgyo Jeong、Hye-Young Jang
DOI:10.1002/ejoc.201800778
日期:2018.7.6
Regioselectivesynthesis of diverse β‐hydroxysulfones is conducted via sulfonylation; the reactions of alkenes with thiosulfonates provided 2° and 3° β‐hydroxysulfones, and the reactions of epoxides with thiosulfonates afforded 1° and 2° β‐hydroxysulfones in good yields.
Generation of sulfonyl radicals from sulfonylhydrazides has been achieved in the presence of a non-toxic iron catalyst and oxygen. The intermolecular addition of resultant sulfonyl radicals to alkenes affords β-hydroxysulfone compounds.
PQS-enabled visible-light iridium photoredox catalysis in water at room temperature
作者:Mei-jie Bu、Chun Cai、Fabrice Gallou、Bruce H. Lipshutz
DOI:10.1039/c7gc03866f
日期:——
An amphoteric PQS-attached photocatalyst has been prepared that undergoes self-aggregation in water into nanomicelles. This covalently bound species enables Ir-based photoredoxcatalysis to be conducted in the absence of additives or co-solvents. Representative reactions are described using this new catalytic system, which require no additional investment of external energy in the form of heating or
An Efficient Organic Electrosynthesis of β-Hydroxysulfones
作者:Po-Yu Chen、Meng-Yang Chang、Chieh-Kai Chan、Nai-Chang Lo
DOI:10.1055/s-0036-1589051
日期:2017.10
Abstract An efficient organic electrosynthesis of tertiary β-hydroxysulfones from functionalized α-methylstyrenes with substitutedsodium sulfinates has been established. The novel electrosynthetic method provided the desired products in excellent yields, and the key structure was confirmed by X-ray single-crystal diffraction analysis. An efficient organic electrosynthesis of tertiary β-hydroxysulfones
Iodine and bromine in the presence of sodium benzenesulphinate react with olefins in acetone solution to give halosulphones resulting from an apparent steric direction of attack at the intermediate halonium ion. A straightforward preparation of benzenesulphonyl iodide from benzenesulphonyl chloride and sodium iodide is also described.