95219-53-7Relevant academic research and scientific papers
Br?nsted Acid-Assisted Zinc-Catalyzed Markovnikov-Type Hydrothiolation of Alkenes Using Thiols
Taniguchi, Nobukazu
, p. 6528 - 6534 (2020/07/14)
The zinc-catalyzed regioselective hydrothiolation of alkenes with thiols was achieved in the presence of 4-toluenesulfonic acid. Through this procedure, Markovnikov-type sulfides were synthesized in excellent yields, and the formation of anti-Markovnikov-
Palladium(II)-catalyzed ortho -olefination of arenes applying sulfoxides as remote directing groups
Wang, Binjie,Shen, Chuang,Yao, Jinzhong,Yin, Hong,Zhang, Yuhong
supporting information, p. 46 - 49 (2014/01/23)
A novel palladium-catalyzed ortho-C(sp2)-H olefination protocol has been developed by the use of sulfoxide as the directing group. Importantly, relatively remote coordination can be accessed to achieve the ortho olefination of benzyl, 2-arylethyl, and 3-arylpropenyl sulfoxide substrates, and the olefinated sulfoxide can be easily transformed to other functionalities.
Synthesis of sulfur-bridged polycycles via Pd-catalyzed dehydrogenative cyclization
Wang, Binjie,Liu, Yue,Lin, Cong,Xu, Yiming,Liu, Zhanxiang,Zhang, Yuhong
supporting information, p. 4574 - 4577 (2015/01/08)
A general approach to sulfur-bridged polycycles by palladium-catalyzed double C(sp2)-H bond oxidative cyclization is presented. This protocol afforded diverse sulfur-bridged five-, six-, and seven-membered polycycles in moderate to good yields with a tolerance for a wide variety of functional groups. A sulfide-bridged six-membered pyrene-thienoacene compound was synthesized readily using this method, and excellent performance for photoluminescence quantum yield was observed.
Rate constants for the β-elimination of tosyl radical from a variety of substituted carbon-centered radicals
Timokhin, Vitaliy I.,Gastaldi, Stephane,Bertrand, Michele P.,Chatgilialoglu, Chryssostomos
, p. 3532 - 3537 (2007/10/03)
The rate constants for the β-elimination of tosyl radical (Ts?) from a series of carbon-centered radicals have been determined by using the radical clock methodology. Depending on the substituents R in Ts-CH2-CH(?)R radicals, the rate constants at 293 K vary by more than 2 orders of magnitude in the range of 103-106 s-1. The lowest values were found for the 2-naphthyl and carbamoyl substituents, whereas the benzyl substituent is located at the other extremity. The effect of the substituent upon the stabilization of the starting radical exerts a predominant influence in this reaction in decreasing the rate of fragmentation.
