Invention Grant
- Patent Title: Process for the preparation of gamma-valerolactone by catalytic hydrogenation of levulinic acid using Ru-based catalysts
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Application No.: US15518217Application Date: 2015-10-08
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Publication No.: US10221149B2Publication Date: 2019-03-05
- Inventor: Kannan Srinivasan , Sreedhar Gundekari
- Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
- Priority: IN2866/DEL/2014 20141008
- International Application: PCT/IN2015/050130 WO 20151008
- International Announcement: WO2016/056030 WO 20160414
- Main IPC: C07D307/33
- IPC: C07D307/33 ; B01J23/46 ; B01J37/03 ; B01J37/02
Abstract:
The present invention discloses a fast and selective process for the preparation of γ-valerolactone (Gvl) by catalytic hydrogenation of biomass-derived levulinic acid (LA) using recyclable ruthenium (Ru)-based heterogeneous catalysts in aqueous medium in stoichiometric yields (˜100%) under mild reaction conditions using nearly required amount of hydrogen.
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