M i l d a n d E f f i c i e n t M e t h o d f o r D e c a r b o x y l a t i v e B r o m i n a t i o n o f a , b -U n s a t u r a t e d C a r b o x y l i c A c i d sAbstract: A simple and mild method for decarboxylative bromination of a,b-unsaturated carboxylic acids has been developed using Dess-Martin Periodinane (DMP) in combination with tetraethylammonium bromide (TEAB) at room temperature. High yields of the corresponding bromoalkenes were obtained.

A simple and highly efficient three-component method using easily available amines, nitrostyrene and diketones in one pot has been developed for synthesis of pyrroles in presence of catalytic amount of iodobenzene and Oxone ® as oxidant. The protocol has been used to afford wide range of pyrroles in moderate to good yields.

2006 Halogen compounds Q 0090 Mild and Efficient Method for Decarboxylative Bromination of α,β-Unsaturated Carboxylic Acids with Dess-Martin Periodinane. -A combination of Dess-Martin periodinane and tetraethylammonium bromide is highly efficient for the title procedure. -(TELVEKAR*, V. N.; AROTE, N. D.; HERLEKAR, O. P.; Synlett 2005, 16, 2495-2497; Dep. Pharm. Sci. Technol., Inst. Chem. Technol., Univ. Mumbai, Matunga 400 019, Mumbai, India; Eng.) -Mais 08-056

Oxidation O 0212Mild and Recyclable Hypervalent Iodine System for Oxidation of Alcohols. -The method is also suitable for the oxidation of primary and secondary OH-groups in natural substances such as sugars and steroids. But in these cases the yields are considerably lower. -(TELVEKAR*, V. N.; HERLEKAR, O. P.; Synth. Commun. 37 (2007) 5, 859-863; Dep. Pharm. Sci. Technol., Inst. Chem. Technol., Univ. Mumbai,

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