乙烯基硫醇是通过 X 射线引发的硫化氢在室温下加成到单取代和双取代的乙炔上来合成的。二乙烯基硫醚、连位二硫醇和乙烯基硫醇的低聚物也作为反应产物获得。乙烯基硫醇是无色的馏出液。它们的稳定性随乙炔而变化。最稳定的来自六氟-2丁炔和3,3,3-三氟丙炔。在任何情况下都没有任何证据表明反应产物中存在互变异构硫酮。(授权)
Copper(I) Salt Promoted Reactions of Sulfur Nucleophiles with Vinyl Bromides. Simple and Straightforward Preparations of S-Vinyl Thiobenzoates and S,S′-Vinylidene Bisthiobenzoates
Copper(I) salt promoted reaction of vinyl bromides with dibenzoyl disulfide in hot aprotic polar solvent produced thiophene derivatives in moderate yields, while the corresponding reaction with sodium thiobenzoate led to S-vinyl thiobenzoates in good yields.
Preparation and Reactivity of Chalcogenyl Phosphonates and Phosphane Oxides
作者:Claudio C. Silveira、Francieli Rinaldi、Rafael C. Guadagnin
DOI:10.1002/ejoc.200700388
日期:2007.10
bis[(diphenylphosphinoyl)methyl] sulfides, selenides, and tellurides is described by the reaction of (diphenylphosphinoyl)methyl p-toluenesulfonate with sodium chalcogenides. The title compounds are subjected to Horner–Wittig-type reactions with aldehydes and ketones to give symmetrical divinylic sulfides, selenides, and tellurides with preferential (E) stereochemistry. Unsymmetrical divinylic sulfides can be prepared
Lifetime of M Intermediate in the D96N Mutant of Bacteriorhodopsin Determined by a Photoelectrochemical Method
作者:Koichi Koyama、Tsutomu Miyasaka、Richard Needleman、Janos K. Lanyi
DOI:10.1246/cl.1999.769
日期:1999.8
The recombinant D96N mutant of bacteriorhodopsin (bR) was immobilized on SnO2 electrode that contacts an aqueous electrolyte. By laser pulse excitation, photocurrent behavior of D96N was analyzed to evaluate the lifetime of the M intermediate involved in proton transfer reactions. The half-life of the M intermediate in the photocycle was about 5 s, which is 103-fold longer than that of wild-type and shows the crucial role of D96 in the uptake of protons.
Base‐Catalyzed Synthesis of <i>N</i>‐Aryl Thioacetamides from Multicomponent Reaction of Phenylacetylenes, Sulfur and Anilines
作者:Minh Hang Nguyen、Hai Sam Nguyen、Le Anh Nguyen、Bich Ngoc Nguyen、Hai Thuong Cao、Dinh Hung Mac、Thanh Binh Nguyen
DOI:10.1002/ejoc.202301319
日期:2024.3.11
“Rien ne se perd, rien ne se crée”: N-aryl arylthioacetamides could be formed via base-catalyzed three-component reaction of anilines, phenylacetylenes and elemental sulfur with complete atom efficiency.
“Rien ne se perd, rien ne se crée”:N-芳基芳基硫代乙酰胺可以通过苯胺、苯乙炔和元素硫的碱催化三组分反应以完全原子效率形成。