Page 77 - WINGS OF AGRI-INNOVATIONS

36.Invention Process For The Preparation Of 5-Substituted-1,3,4-Oxadiazole-2-Thiols As New Urease And
Nitrification Inhibitors 37. Improvement In/Or Relating To Synthesis Of O- Alkyl Derivatives Of Oxime Ethers Of Piperonal As
Potentiol Fungicides
Patent Number 279536 Patent Number 281543
Date Of Certificate Issue 27/01/2017 Date Of Certificate Issue 21/03/2017
Post Grant Journal Date 27/01/2017 Post Grant Journal Date 24/03/2017
Publication Number 36/2008 Publication Number 30/2006
Publication Date 05/09/2008 Publication Date 28/07/2006
Publication Type INA Publication Type INA
Application Number 3461/DEL/2005 Application Number 1592/DEL/2004
Application Filing Date 23/12/2005 Application Filing Date 25/08/2004
Field Of Invention CHEMICAL Field Of Invention CHEMICAL
Classification (IPC) A01N 43/76 Classification (IPC) C07D 213/44

Inventor RAJESH KUMAR, ANUPAMA, BALRAJ SINGH
PARMAR Inventor D.B. SAXENA, AARTI MAHAJAN
Abstract:
Abstract:
5-Substituted-l,3,4-oxadiazole-2-thiols of formula, 1, as urease and nitrication inhibitors and an environment The present invention relates to the preparation O- alkyl oxime ether derivatives of piperonal wherein
benign process for the preparation of the same by reacting carboxylic acid hydrazide, RCONHNH2, with piperonal oxime reacts with alkyl halides in presence of a base in an organic solvent with continuous refluxing
carbon disulphide, CS2, in an energy transfer medium under microwave irradiation (MW1); wherein R is C| at 30 - 50°C to produce alkylated products. It also involves various solid and liquid preparations obtained by
to Cis saturated or unsaturated alkyl, unsubstituted or substituted by halogen, nitro, OR' - R' = CHs, C2Hs incorporating O-alkyl oxime ether derivatives of piperonal either alone or in combination with one or more
and or hydroxy; CG to €20 aralkyl or aryl, unsubstituted or substituted by C1 to C4 alkyl, halogen, nitro, OR' suitable carriers, adjuvant and/or diluents for use in preventing or at least inhibiting the growth of fungi.
- R' = CH3, C2H5 and or hydroxy; heterocyclyl, heterocycloalkyi and the like, are described. Following simple
laboratory conditions, near quantitative yields of the resultant derivatives have been reported. Methods of
the using the materials along with the various nitrogenous fertilizers are described.

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