Hydrated ferric sulfate catalyzed synthesis of 3-[(alkyl/arylthio)(aryl)methyl]-1H-indole derivatives through one-pot reaction
作者:Ajaz A. Dar、Shahzad Ali、Abu T. Khan
DOI:10.1016/j.tetlet.2013.11.056
日期:2014.1
three-component reaction from indoles, aromaticaldehydes, and thiols at room temperature using hydrated ferric sulfate as a Lewis acid catalyst. The key features of the present protocol are mild and simple reaction procedure, moderate to good yields, requirement of inexpensive and reusable catalyst, no formation of dithioacetals derivatives from the corresponding aldehydes as well as bis-(indolyl) methane derivatives
Catalytic asymmetric cleavage of sp<sup>3</sup>C–N bonds for access to highly enantioenriched N-benzylic sulfonamides
作者:Xue-Song Wu、Shi-Kai Tian
DOI:10.1039/c1cc16630a
日期:——
In the presence of 10 mol% of a chiral phosphoric acid, a variety of racemic N-benzylic sulfonamides having N-(3-indolyl)methyl groups smoothly undergo kinetic resolution with benzyl thiol at 0 °C or at room temperature and the remaining sulfonamides are recovered in moderate to excellent yields and with excellent ee.
Sulfuric acid functionalized MCM-41 coated on magnetite nanoparticles as a recyclable core–shell solid acid catalyst for three-component condensation of indoles, aldehydes and thiols
作者:Alireza Khorshidi、Shahab Shariati
DOI:10.1039/c4ra05550k
日期:——
Sulfuric acid functionalized MCM-41 coated on magnetite nanoparticles as a recyclable core–shell catalyst in preparation of 3-[(aryl)(arylthio)methyl]-1H-indoles.
One-Pot Access to 3,3’-Bisindolylmethanes through the Intermolecular Pummerer Reaction
作者:Minoru Ishikura、Takumi Abe、Toshiaki Ikeda、Tomoki Itoh、Noriyuki Hatae、Eiko Toyota
DOI:10.3987/com-13-s(s)31
日期:——
A one-pot synthesis of 3,3'-bisindolylmethanes was developed through the intermolecular Pummerer reaction using indole as a nucleophile.
Visible-Light-Triggered C–C and C–N Bond Formation by C–S Bond Cleavage of Benzylic Thioethers
作者:Matteo Lanzi、Jérémy Merad、Dina V. Boyarskaya、Giovanni Maestri、Clémence Allain、Géraldine Masson
DOI:10.1021/acs.orglett.8b02196
日期:2018.9.7
The cleavage of sulfidic C–S bonds under visible-light irradiation was harnessed to generate carbocations under neutral conditions and synthesize valuable di- and triarylalkanes as well as benzyl amines. To this end, photoredox catalysis and direct photoinduced C–S bondcleavage are used as complementary approaches and participate in the versatility of the general strategy. Extensive mechanistic studies