A. Guijarro et al., O-TERT-BUTYL-N-(CHLOROMETHYL)-N-METHYL CARBAMATE AS A SOURCE OF THE MENHCH(2)(-) SYNTHON, Tetrahedron letters, 37(31), 1996, pp. 5597-5600
The reaction of O-tert-butyl-N-(chloromethyl)-N-methyl carbamate (1) w
ith lithium powder and a catalytic amount of DTBB (2.5 mol %) in the p
resence of different electrophiles [Me(3)SiCl, Bu(i)CHO, Bu(t)CHO, PhC
HO, (CH2)(4)CO, Et(2)CO, PhCOMe, Ph(2)CO] in THF at -78 degrees C lead
s, after hydrolysis with water, to the expected functionalised carbama
tes 2. As an example, the hydrolysis of compound 2e with hydrogen chlo
ride affords easy deprotection of the amine functionality yielding the
corresponding 1,2-aminoalcohol 3e. Copyright (C) 1996 Elsevier Scienc
e Ltd