Pi Industries Ltd.

Pramod Subhash Nagle

Suresh Kumar Sythana

Alexander Gm Klausener

Deepak Shankar Panmand

Vipender Singh

Vijay Kumar Salvi

Yuvraj Navnath Kale

Shrikant Bhausaheb Kanawade

Pranab Kumar Patra

Kantilal Balu Shende

The present invention discloses a process for the preparation of substituted pyridine compounds of formula (I), comprises a step in which vinylogous nitriles of formula (II), are obtained from substituted α,β-unsaturated nitrile compounds of formula (III), and a further step of converting the vinylogous nitrile compounds of formula (II) into substituted pyridines of formula (I); wherein R, R, R, Rand LG are as defined in the description.

Process for the preparation of substituted pyridine compounds and intermediates thereof

The present invention relates a novel process for preparing a compound of Formula I, The process comprises a novel and inventive step of converting a dione of Formula II into an isatoic anhydride of Formula V in a single step.

Process for preparing anthranilic diamides and intermediates thereof

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Jalgaon-Maharashtra, India

Pramod Subhash Nagle