Ls. Richter et al., 2 NEW PROCEDURES FOR THE INTRODUCTION OF BENZYL-TYPE PROTECTING GROUPS FOR THIOLS, Tetrahedron letters, 35(11), 1994, pp. 1631-1634
Two new methods for the benzylation of thiols are described: a) direct
S-alkylation with para-substituted benzylic cations; and b) reductive
S-alkylations of 2-aminothiols. Both methods provide efficient routes
for the introduction of benzyl-type protecting groups in high yields.