68239-08-7Relevant articles and documents
Convenient Preparation of 1,2-Alkylenedioxybenzofuroxans and Bonzofurazans
Takakis, Ioannis M.,Hadjimihalakis, Phaedon M.,Tsantali, Georgia G.,Pilini, Helena
, p. 123 - 128 (2007/10/02)
Nitration of the dioxolo-annelated benzenes 11 led to the corresponding dinitro derivatives 12.Nucleophilic substitution of the latter with azide ion furnished the monoazides 13 which on thermolysis afforded the benzofuroxans 14.Deoxygenation of furoxans 1a,b,e,f, 2a-c,e,f, 5, 7, 9 and 14 with triphenylphoshine, furnished the respective benzofurazans 3a,b,e,f, 4a-c,e,f, 6, 8, 10 and 15.