2-Bromoethanol → 94283-73-5

Participants

Reaction Steps

from 3-hydroxy-4-isopropoxybenzaldehyde (prepared in 75% yield by monoalkylation of 3,4-dihydroxybenzaldehyde with isopropyl bromide and K2CO3 in DMF) and 2-bromo-ethanol there was obtained 3-(2-hydroxy-ethoxy)-4-isopropoxy-benzaldehyde, which was subsequently converted by reaction with 4-aminobenzonitrile and toluene-4-sulphonyl methylisocyanide into methyl (RS)-(4-cyano-phenylamino)-[3-(2-hydroxy-ethoxy)-4-isopropoxy-phenyl]-acetate and then into methyl (RS)-(4-carbamimidoyl-phenylamino)-[3-(2-hydroxy-ethoxy)-4-isopropoxy-phenyl]-acetate hydrochloride (1:1);

Provenance & Evidence