28586-59-6

Upstream product

• 28586-48-3 Benzoesaeure-(α-hydroxy-α-phenyl-o-toluidid) 
• 29670-64-2 N-(2-benzoylphenyl)benzamide 
• 100-52-7 benzaldehyde 
• 123622-08-2 1-(Isopropoxy-phenyl-methyl)-1H-benzotriazole 
• 143064-49-7 1-(Ethoxy-phenyl-methyl)-1H-benzotriazole 

Downstream Products

• 26920-07-0 1-Methyl-4-phenyl-3,4-dihydrochinazolin-2(1H)-thion 
• 86839-58-9 Bis<2-(methylamino)benzhydryl>-ether 
• 86839-67-0 r-3-Ethoxy-c-2-hydroxy-2,3-diphenyl-1-methylindolin 
• 86839-54-5 Ethyl-<2-(N-methylbenzamido)benzhydryl>-ether 
• 86839-45-4 r-2-Ethoxy-t-3-hydroxy-1-methyl-2,3-diphenylindolin 
• 86839-37-4 2-Ethoxy-1-methyl-2,4-diphenyl-1,2-dihydro-4H-3,1-benzoxazin 
• 86839-44-3 1-Methyl-2,4-diphenyl-1,2-dihydro-4H-3,1-benzoxazin-2-carbonitril 
• 86839-59-0 3-Hydroxy-1,2-dimethyl-2,3-diphenylindolin 
• 86839-52-3 3-Ethoxy-2,3-diphenyl-3H-indol 
• 86839-43-2 1,2-Dimethyl-2,4-diphenyl-1,2-dihydro-4H-3,1-benzoxazin 
• 86839-55-6 Ethyl-<2-(methylamino)benzhydryl>-ether 
• 1922-77-6 2,2-diphenyl-1,2-dihydro-3H-indol-3-one 
• 23740-98-9 3-hydroxy-2,3-diphenyl-3H-indole 
• 86839-51-2 2-tert-Butyl-2,4-diphenyl-1,2-dihydro-4H-3,1-benzoxazin 

Relevant academic research and scientific papers

Synthesis of 4H-3,1-benzoxazines by the reaction of o-(N-acylamino)benzyl alcohols with dast

The treatment of o-(N-acylamino)benzyl alcohols (1) with DAST afforded the dehydrative cyclization product, 4H-3,1-benzoxazines (4) and the hydroxy replacement product, o-(N-acylamino)benzyl fluorides (5). The yields of benzoxazines (4) and fluorides (5)

A Novel o-Iminophenyl Anion Route to Heterocycles and Ortho-Substituted Anilines

Ring opening of lithio derivatives of N-(α-alkoxyalkyl)benzotriazoles 9 and 22 and subsequent extrusion of nitrogen at -78 deg C gave novel o-iminophenyl anions which enable synthetically useful preparations of ortho-substituted anilines (19 and 25) and of benzoheterocycles (14, 20, 21, 24, and 26).

Heterocyclic 8?-Systems, 15. Investigations on Indole 2,3-Oxides: Sythesis of 3-Hydroxyindoles via Intramolecular Wittig-Rearrangement of 1,2-Dihydro-4H-3,1-benzoxazines

Investigations to trap indole 2,3-oxides 11 by base catalyzed ring contraction of 4H-3,1-benzoxazines 3 led in the system KNH2/NH3 to 3-hydroxy-3H-indoles 7.The N-methylbenzoxazinium salts 15, obtained from 3 and FSO3CH3, yielded with ethoxide under kinet