55368-57-5Relevant articles and documents
Photolysis of α-azidoacetophenones: Trapping of triplet alkyl nitrenes in solution
Mandel, Sarah M.,Bauer, Jeanette A. Krause,Gudmundsdottir, Anna D.
, p. 523 - 526 (2001)
(Matrix presented) Selective excitation of the ketone chromophore in α-azidoacetophenones, 1, leads to intramolecular triplet energy transfer to the azido group, which forms the corresponding triplet alkyl nitrene, 2. Azides 1 also undergo α-cleavage to form benzoyl and methyl azido radicals in competition with nitrene formation. Thus the major photoproduct, 2-benzoylamino-1-phenylethanone, 3, comes from trapping of 2 with a benzoyl radical. This appears to be the first observation of bimolecular trapping of triplet alkyl nitrenes in solution.
Synthesis and Antitrypanosomal Activity of Some Bis(4-guanylphenyl) Five- and Six-Membered Ring Heterocycles
Das, Bijan P.,Wallace, Rebecca A.,Boykin, David Withers
, p. 578 - 581 (2007/10/02)
2,5-Bis(4-guanylphenyl)-1,3-oxazole, 2,5-bis(4-guanylphenyl)-1,3,4-oxadiazole and -1,3,4-thiadiazole, and 3,6-bis(4-guanylphenyl)pyridazine and several of their ''cyclic guanyl'' analogues have been synthesized. 2,5-Bis(4-guanylphenyl)-1,3-oxazole and -1,
