IT has been shown (Part I*) that reaction of hydrogen sulphide and formaldehyde with N- methylene-cyclohexylamine or-bemylamine leads to dissimilar products formulated as (I) and (11) or (111) respectively. This was thought to be due to the methyleneimines having monomeric and dimeric structures respectively, but their infra-red absorption spectra show that in fact neither is monomeric. This discrepancy has now been shown to be largely ...
