Alkyl (1-hydroperoxy-1-methylethy1) diazenes 2a-f [(CH,), C (OOH) N= NR: a, R= CHzCF3; b, R= CHzCH2CN; c, R= CHzCH (CH3) CN; d, R= CHzCH20CH3; e, R= CH2CH20C6H5; f, R= CH2CHzCH20C6H5)] were prepared in solution by autoxidation of the corresponding hydrazones of acetone. Thermolysis of the diazenes at 50-80" C in alkenes leads to alcohols. For example, 2b decomposes in 1, l-diphenylethene to afford 5-hydroxy-5, 5- ...