Stereospecific synthesis of P-epimeric (Sp,Sp)-bis-[(–)-menthyloxy(phenyl)thiophosphoryl] disulphide. An unusual case of steric selection
Abstract
Iodine–water oxidation of compound 1, condensation of 1 with (R)p-7 together with the reaction of the latter with trimethylsilyl azide results in the formation of stable (S)p(S)p-2.