Tetrabutylammonium tribromide (TBATB) has been found to be an efficient catalyst for the one-pot synthesis of highly substituted piperidines through a combinati Rajakumar Ananthakrishnan Ph.D.(M.K.Univ., Madurai) Associate Professor, Chemistry Vice-Chairman, Career Development Centre A Rajakumar joined the Institute in 2008 An efficient synthesis of cyclohexane- and cyclopentane-1,3-dione-2-spirocyclopropanes from 1,3-cycloalkanediones using sulfonium salts was achieved. The reacti ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly Subscriptions, orders, Open-Access choice Categories: C-Br Bond Formation Synthesis of α-Bromoketones. Recent Literature. 1-Arylethanones and related compounds are rapidly brominated in dioxane with the H. ISI Papers: Synthesis of 2-hydroxy-1,4-naphthoquinone derivatives via a three-component reaction catalyzed by nanoporous MCM-41 Dyes and Pigments 2015 , 122. Recent Literature. A highly efficient general strategy for the synthesis of 2-amino acids by homologation of α-amino acids, involving the Reformatsky reaction with a. Halogenation is a basic and fundamental transformation in organic chemistry, and halogenated compounds are of extreme importance as building blocks in organic synthesis.