... Volume 68, Issue 18, 6 May 2012, Pages 3616–3625. ... The presence of the latter was confirmed by the reaction with Ph 3 P. 16 Althought the production of disulfides 9 might be generally explained by oxidation processes, 15a and 15b the formation of 2-benzyl-1,3,4 ... a, H, 24, 30, 28 ...