Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Dedicated to Professor Antonio Gómez-Sánchez on his 65 th birthday. ... Formaldehyde dimethylhydrazone readily adds to simple nitro-olefins in the absence of base giving β-nitrodimethylhydrazones in very high yields. The corresponding β-nitroaldehydes can be obtained by ozonolysis.