Dibenzoyl

Diazanorcaradienes, 3, 38 3a,6a-Diazapentalene, 1,3-dibenzoyl-2-phenyl-reaction with DMAD, 4, 490 Diazaphenalenes synthesis, 2, 618 1,6-Diazaphenalenes synthesis, 2, 618... [Pg.595]

Bei den o.g. Oxidationen mit Singulett-Sauerstoff tritt oft auch Ringspaltung ein. So erhalt man z. B. aus 4,5-Diphenyl-imidazol je nach Reaktionsbcdingungen das cyclische Oxidations-produkt 4,5-Diphenyl 5-methoxy-2-oxo-2,5-dihydro-imidazol (I 36%)1233 oder den unter Ringoffnung gebildeten 1,3-Dibenzoyl-hamstoff (II 49%)1234 als Hauptprodukt. [Pg.188]

B. 2-( 1,3-Dibenzoyl-4-imidazolin-2-yl)imidazole hydrochloride. 3 Into a 3-L beaker equipped with an air-driven stirrer are successively introduced 150 g (0.335 mol) of dry, unrecrystallized... [Pg.38]

Benzoyl- 2-( 1,3-dibenzoyl-4-imidazo-lin-2-yl)imidazole, 73 Benzyl bromide, 93... [Pg.69]

The reaction of benzoylthiourea with phosphorus pentasulfide was reported to yield 3-phenyl-l,2,4-dithiazole-5-thione (85). Derocque et observed that phosphorus pentasulfide converted 1,3-dibenzoyl-2-methy]-2-thiopseudoureas into 86a. However, in view of the X-ray results on the analogous structure 84 ° it may well be that structure 86b is a more important resonance contributor than 86a. [Pg.123]

Oxo-3-athyl-l-benzyl-2.3-dihydro- 563. 1287 2-Oxo-1.3-dibenzoyl-2.3-dihydru- 1 3 1 5 2-Oxo-l-phenyl- 1277 2-Phenyl- 562.575.1091. 1117.1263... [Pg.799]

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