The fast and efficient KI/H<sub>2</sub>O<sub>2</sub> mediated 2-sulfonylation of indoles and <i>N</i>-methylpyrrole in water
作者:Jun Zhang、Zhong Wang、Lingjuan Chen、Yan Liu、Ping Liu、Bin Dai
DOI:10.1039/c8ra09367a
日期:——
The rapid and efficient KI/H2O2-mediated 2-sulfonylation of substituted indoles and N-methylpyrrole was established. The corresponding 2-sulfonylation products are synthesizedfrom readily available sulfur sources, namely arylsulfonyl hydrazides, 4-methylbenzenesulfinic acid and sodium 4-methylbenzenesulfinate in good to excellent yields in only 5 min. Moreover, the aqueous solution of hydrogen peroxide
建立了快速高效的KI/H 2 O 2介导的取代吲哚和N-甲基吡咯的2-磺酰化反应。相应的 2-磺酰化产物是由容易获得的硫源,即芳基磺酰肼、4-甲基苯亚磺酸和 4-甲基苯亚磺酸钠在 5 分钟内以良好至优异的产率合成的。此外,过氧化氢水溶液既用作氧化剂又用作溶剂。机理研究表明,2,3-二碘二氢吲哚是主要的磺酰化中间体。
Zinc-mediated acylation and sulfonation of pyrrole and its derivatives
Pyrrole and its derivatives react smoothly with acid chlorides and sulfonyl chlorides in the presence of zinc metal in toluene at ambient temperature to afford the corresponding 2-acetyl and 2-sulfonyl pyrrole derivatives in high yields with high regioselectivity.
This invention is directed to aroyl aminoacyl pyrroles pharmaceutically useful as agents and modulators for the treatment of central nervous system disorders and a method for the treatment of central nervous system disorders including, but not limited to, use of the compounds of the present invention as anticonvulsant agents and modulators, antiepileptic agents and modulators, neuroprotective agents and modulators, muscle relaxant agents and modulators and as agents and modulators for the treatment of neuropathic pain.
Novel pyrrole monomers and polymers prepared therefrom
申请人:COOKSON GROUP plc
公开号:EP0253595A2
公开(公告)日:1988-01-20
Novel pyrroles of the general formula
wherein m is an integer of from 1 to 18 and R is certain specified substituent groups can be polymerised to form hompolymers or copolymers which are electrically conducting. The polymers are of particular use in photovoltaic cells, such as solar cells.
通式中 m 为 1 至 18 的整数,R 为某些特定取代基的新型吡咯可以聚合成具有导电性能的共聚物或共聚物。 这种聚合物特别适用于光伏电池,如太阳能电池。
KATRITZKY, ALAN R.;AKUTAGAWAWA, KUNIHIKO, ORG. PREP. AND PROCED. INT., 20,(1988) N, C. 585-590