941577-03-3

Upstream product

• 80476-91-1 1-benzyl-4-(4-chloro-benzhydryl)-piperazine 
• 941667-95-4 (R)-(-)-1-(4-chlorophenyl)-phenylmethyl-4-benzyl-piperazine 
• 17341-93-4 2,2,2-Trichloroethyl chloroformate 

Relevant academic research and scientific papers

OPTICALLY ACTIVE CARBAMATES, PROCESS FOR PREPARATION THEREOF AND USE THEREOF AS PHARMACEUTICAL INTERMEDIATES

The present invention is related to l-[(4-chlorophenyl)-phenylmethyl]-4-(2,2,2-trichloroethoxycarbonyl)-piperazine of the Formula (IV) and optically isomers thereof, process for preparation thereof and the use of the compound of the Formula (IV) in the preparation of l-(4-chlorophenyl)-phenylmethyl-piperazine and optical isomers and salts thereof. l-(4-chlorophenyl)-phenylmethyl-piperazine and optical isomers thereof are important intermediates in the preparation of non-sedating antihistamine-type active pharmaceutical ingredients.