A novel disulfenylation of alkenes with thiophenols and their corresponding disulfides by using air as the oxidant has been achieved. This transformation provides a facile and practical protocol for the synthesis of vicinal dithioethers under mild conditions.
Hexafluoroisopropanol-Promoted Disulfidation and Diselenation of Alkyne, Alkene, and Allene
作者:Chiyu Wei、Ying He、Jin Wang、Xiaohan Ye、Lukasz Wojtas、Xiaodong Shi
DOI:10.1021/acs.orglett.0c01834
日期:2020.7.17
in HFIP led to desired products in good to excellent yields (up to 96%). In contrast, other solvents, such as isopropanol and dichloroethane, could not promote the same reaction. This method revealed an example of HFIP-promoted transformations under the mild conditions, which greatly highlighted the unique reactivity of this specialsolvent.
DEOXYGENATIVE THIOACETALIZATION OF CARBONYL COMPOUNDS WITH ORGANIC DISULFIDE AND TRIBUTYLPHOSPHINE
作者:Masato Tazaki、Makoto Takagi
DOI:10.1246/cl.1979.767
日期:1979.7.5
A new deoxygenative thioether formation from carbonyl compounds as well as epoxides is presented (eq. 1–3). The reaction proceeds with the combined use of alkyl or aryl disulfide and tributylphosphine under neutral and mild conditions. The reaction with aldehydes proceeds with special ease to give thioacetals in high yields, and can be a valuable synthetic reaction.
Heart of carbon: The first stable asymmetric bis(ylide), N,N′‐(iPr2NCH2CH2NiPr)(Ph)PCSPh2, has been isolated (see picture; C black, N gray). The presence of the two different ligands causes this carbon(0) complex to behave as an asymmetric atomic carbonsource.
Diphenyl Diselenide-Assisted Radical Addition Reaction of Diphenyl Disulfide to Unsaturated Bonds upon Photoirradiation
作者:Yuki Yamamoto、Qiqi Chen、Akiya Ogawa
DOI:10.3390/molecules28062450
日期:——
unsaturated compounds. In this study, by combining an interelement compound with homologous heteroatom compounds as a catalyst, we succeeded in suppressing the polymerization of the unsaturatedcompounds and in attaining a highly selective carbon-heteroatom bond formation through the desired addition reaction. In this paper, we have examined in detail whether such a "catalytic radical reaction" proceeds