Oxysulfonylation of Alkenes with Sulfonyl Hydrazides under Transition-Metal-Free Conditions
作者:Congrong Liu、Lianghui Ding、Guang Guo、Weiwei Liu
DOI:10.1002/ejoc.201501613
日期:2016.2
A novel method to synthesise β-keto sulfones is demonstrated by Bronsted acid promoted oxysulfonylation of alkenes with sulfonyl hydrazides under transition-metal-free conditions. The reaction selectively affords structurally diverse β-keto sulfones in good to excellent yields in a 9:1 mixture of acetonitrile/water.
Aerobic Oxidation in Nanomicelles of Aryl Alkynes, in Water at Room Temperature
作者:Sachin Handa、James C. Fennewald、Bruce H. Lipshutz
DOI:10.1002/anie.201310634
日期:2014.3.24
On the basis of the far higher solubility of oxygen gas inside the hydrocarbon core of nanomicelles, metal and peroxide free aerobic oxidation of aryl alkynes to β‐ketosulfones has been achieved in water at roomtemperature. Many examples are offered that illustrate broad functional group tolerance. The overall process is environmentally friendly, documented by the associated low E Factors.
基于纳米胶束碳氢化合物核内氧气的更高溶解度,在室温下在水中实现了芳基炔烃至 β-酮砜的无金属和过氧化物有氧氧化。提供了许多示例来说明广泛的官能团耐受性。整个过程是环保的,由相关的低 E 因子记录。
150. Synthesis of amino-sulphones
作者:Alan A. Goldberg、Donald M. Besly
DOI:10.1039/jr9450000566
日期:——
X-ray investigations of sulfur-containing fungicides. IV. 4′-{[Benzoyl(4-chlorophenylhydrazono)methyl]sulfonyl}acetanilide and 4′-{[benzoyl(4-methoxyphenylhydrazono)methyl]sulfonyl}acetanilide
作者:Wojciech M. Wolf
DOI:10.1107/s0108270101010642
日期:2001.9.15
The conformations of the two approximately isomorphous structures 4'-[benzoyl(4-chlorophenylhydrazono)methyl]sulfonyl}acetanilide, C22H18ClN3O4S, and 4'-[benzoyl(4-methoxyphenylhydrazono)methyl]sulfonyl}acetanilide, C23H21N3O5S, are stabilized by resonance-assisted intramolecular hydrogen bonds linking the hydrazone moieties and sulfonyl groups. The stronger bond is observed in the former compound. The difference in electronic properties between the Cl atom and the methoxy group is too small to significantly alter the non-bonding interactions of the sulfonyl and beta -carbonyl groups.