Microwave-induced bismuth(III)-catalyzed synthesis of linear indoloquinolines. Issue 30 (26th July 2017)

• Record Type: Journal Article
• Authors: Parvatkar, Prakash T.; Parameswaran, P.S.; Bandyopadhyay, Debasish; Mukherjee, Sanghamitra; Banik, Bimal K.
• Is Part Of: Tetrahedron letters. Volume 58:Issue 30(2017)
• Page Start: 2948
• Page End: 2951
• Publication Date: 2017-07-26
• Subjects: Bismuth nitrate -- Domino -- Indoloquinoline -- Microwave -- Neocryptolepine; Chemistry, Organic -- Periodicals; 547.005
• DOI: 10.1016/j.tetlet.2017.06.040
• Languages: English
• ISSNs: 0040-4039

Abstract

Graphical abstract: Highlights: An efficient microwave-mediated synthesis of indoloquinolines is reported. Reaction uses an environmentally benign bismuth nitrate as a catalyst. Mechanistically, this one-pot transformation is unique. Proposed plausible mechanism for this one-pot transformation. Abstract: Microwave-induced Bi(NO3 )3 -catalyzed one-pot synthesis of a series of linear indoloquinolines is accomplished under mild reaction conditions. While majority of these examples were carried out under solvent-free conditions, in a few cases, minimal quantity of THF is used as solvent. The methodology involves several unique reaction pathways, providing different linear indolo[2, 3- b ]quinolines in good yields from readily available starting materials and using environmentally benign Bi(NO3 )3 ·5H2 O as catalyst.