Ni-catalyzed non-activated C–S bond cleavage at ambient temperature for the synthesis of sulfur-containing polycyclic compounds
作者:Takanori Shibata、Ayato Sekine、Mika Akino、Mamoru Ito
DOI:10.1039/d1cc03226g
日期:——
tetracyclic compounds at ambient temperature. The transformation was initiated by non-activated sp2 C–S bond cleavage along with consecutive alkyne insertions. A double intramolecular reaction of a tetrayne and an intermolecular reaction of monoynes were also available, and the corresponding polycyclic compounds were obtained. Moreover, the obtained cycloadduct showed photo-catalytic activity in benzylic
Nucleophilic reactivities of benzenesulfonyl-substituted carbanions
作者:Florian Seeliger、Herbert Mayr
DOI:10.1039/b805604h
日期:——
Kinetics of the reactions of four benzenesulfonyl-stabilized carbanions (1a-d)- with reference electrophiles (quinone methides 2 and diarylcarbenium ions 3) have been determined in dimethyl sulfoxide solution at 20 degrees C in order to derive the reactivity parameters N and s according to the linear free-energy relationship logk(20 degrees C) = s(N + E) (eqn (1)). The additions of (1a-d)- to ordinary
Nickel catalyzed three-component sulfonylation of non-activated alkyl chlorides
作者:Chang Gu、Zhuochen Wang、Renyi Shi
DOI:10.1039/d3cc01447a
日期:——
of readily available non-activated alkyl chlorides. A wide range of alkylarylsulfones can be synthesized from alkyl chlorides, aryl boronic acids, and potassium metabisulfite, a cheap, efficient, and commercially available SO2 source under simple and easy-to-handle reaction conditions. High selectivity can be achieved with a slight excess of phenylboronic acid and a sulfur dioxide source.
我们描述了镍催化的三组分磺酰化现成的非活化烷基氯。可以在简单且易于处理的反应条件下,从烷基氯、芳基硼酸和焦亚硫酸钾合成各种烷基芳基砜,焦亚硫酸钾是一种廉价、高效且可商购的 SO 2 来源。稍微过量的苯基硼酸和二氧化硫源可以实现高选择性。
Asthana; Misra, Journal of the Indian Chemical Society, 1954, vol. 31, p. 459
作者:Asthana、Misra
DOI:——
日期:——
ENGMAN, D., J. ORG. CHEM., 1984, 49, N 19, 3559-3563