2- Dimethylamino-nitro-1,3,4-oxadiazoles

The dipole moments of both 3- and 4-phenylsydnones containing dimethylamino and nitro substituents were calculated (ah initio 3-21G basis set) the magnitude increases with the electron donor attached to the phenyl ring <1995JPC1923>. Quadrupole moments, octopole moments, and polarizability of 1,2,3-oxadiazole have been determined by ab initio calculations and simple models <1996JPC8752, 1999JPC10009>. 

Dimethisterone (see also Progestins Sequential oral eontraeeptives) Dimethoxane 3,3 -Dimethoxy benzidine 3,3 -Dimethoxybenzidine-4,4 -diisocyanate para-Dimethylaminoazobenzene / ara-Dimethylaminoazobenzenediazo sodium sulfonate tra 5-2-[(Dimethylamino)methylimino]-5-[2-(5-nitro-2-furyl)-vinyl]-l,3,4-oxadiazole... 

As a rule, oxadiazoles and thiadiazoles are not nitrated. Reports on the production of 2-nitro-5-amino-l,3,4-thiadiazole during the nitration of 2-amino-l,3,4-thiadiaz-ole [274] proved erroneous [275], The compound obtained in this case was 2-nit-ramino-l,3,4-thiadiazole [275], There is only a single paper on the nitration of derivatives of 1,3,4-oxa- and 1,3,4-thiadiazoles [276], 2-Dimethylamino-l,3,4-oxa-and 2-dimethylamino-l,3,4-thiadiazoles react with the nitrating mixture with the formation of 2-dimethylamino-5-nitro derivatives. Aryl-substituted oxadiazoles and thiadiazoles are nitrated in the phenyl ring [277, 278],... 

The internal rotation barriers of the dimethylamino groups in substituted azoles including 5-nitro-2-dimethylamino-l,3,4-oxadiazole (AG =9 kcal/mol, 133°C) were also defined by NMR spectroscopy [523],... 

DPLOOO CAS 55738-54-0 HR 3 trans-2-((DIMETHYLAMINO)METHYL-IMINO)-5-(2-(5-NITRO-2-FURYL)-VINYL)-1,3,4-OXADIAZOLE... 

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