Upl Corporation Limited

United Phosphorus Limited

Birja Shanker

Jaidev Rajnikant Shroff

Vikram Rajnikant Shroff

The present invention relates to crystalline modification of (3,4-dichlorophenyl)propanamide (propanil), to a process for the preparation of the same, to pesticidal mixtures and compositions comprising the crystalline modification of (3,4-dichlorophenyl)propanamide and to a method of combating weeds using said mixtures and compositions.

Crystalline modification of propanil

The present invention relates to crystalline modification of (3,4-dichlorophenyl)propanamide (propanil), to a process for the preparation of the same, to pesticidal mixtures and compositions comprising the crystalline modification of 5 (3,4-di-chlorophenyl)propanamide and to a method of combating weeds using said mixtures and compositions.

A compound of formula (I), wherein Ris hydrogen or a hydroxyl protecting group; and Rand Rare same or different and are independently selected from halogen or &#x2014;O&#x2014;SO&#x2014;X; wherein X is &#x2014;C-Calkyl; C-Calkyl substituted with one or more halogen; or substituted or unsubstituted phenyl wherein said phenyl substituent is selected from halogen, nitro and C-Calkyl; provided that when Ris bromine, X is not p-toluoyl; and a process for the preparation thereof.

Chiral intermediates useful for the preparation of hydroxyphosphine ligands

The present invention relates to a process for the asymmetric hydrogenation of imines with hydrogen under elevated pressure in the presence of a catalyst system. In particular the present invention relates to the use of the said catalytic system for the enantioselective hydrogenation of prochiral ketimines to asymmetric amines leading to the formation of herbicides.

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Mumbai, India

Birja Shanker