Bibliographic Information

Clay (montmorillonite K10) catalysis of the Michael addition of a,b-unsaturated carbonyl compounds to indoles. The beneficial role of alcohols.     Poupaert, Jacques H.; Bukuru, Jacques; Gozzo, Andrea.    School Pharmacy, Faculty Medicine,  UCL,  Brussels,  Belg.    Monatshefte fuer Chemie  (1999),  130(7),  929-932.  CODEN: MOCMB7  ISSN: 0026-9247.  Journal  written in English.    CAN 131:102163    AN 1999:488242    CAPLUS  

Abstract

The Michael addn. of AcCH:CH2 to indole is performed under smooth conditions by running the reaction in the presence of an acidic clay catalyst (K10 Montmorillonite) and an aliph. alc. such as EtOH or Me2CHOH.  Presence of an alc. along with a polar solvent (MeNO2) in the reaction medium considerably improves the reaction.  

Indexing -- Section 27-11  (Heterocyclic Compounds (One Hetero Atom)