One-pot synthesis of substituted dibenzoxazepinones and pyridobenzoxazepinones using octacarbonyldicobalt as an effective CO source
作者:Kavitha Anchan、Poongavanam Baburajan、Nagaswarupa H. Puttappa、Sujit Kumar Sarkar
DOI:10.1080/00397911.2019.1695277
日期:2020.2.1
Abstract A facile one-pot protocol for the synthesis of substituted dibenzoxazepinones and pyridobenzoxazepinones from commercially available aryl/heteroaryl halides and amino phenols using octacarbonyldicobalt (Co2(CO)8) as an effective metal carbonyl source has been demonstrated. This method proceeds via the sequential coupling of aryl/heteroaryl halides with aminophenol by amidation and intramolecular
A highly-efficient palladium-catalyzed aminocarbonylation/S<sub>N</sub>Ar approach to dibenzoxazepinones
作者:Chaoren Shen、Helfried Neumann、Xiao-Feng Wu
DOI:10.1039/c5gc00427f
日期:——
A practical protocol for the synthesis of dibenzo[b,e][1,4]oxazepin-11(5H)-ones has been developed. By virtue of Pd-catalyzed aminocarbonylation and aromatic nucleophilic substitution, 61 examples of the desired dibenzoxazepinones were obtained in moderate to excellent isolated yields (54-92%).
Palladium-Catalyzed Carbonylative Synthesis of <i>N</i>
-Heterocycles from 1-Chloro-2-fluorobenzenes
作者:Yang Yuan、Xiao-Feng Wu
DOI:10.1002/ejoc.201900232
日期:2019.3.21
A simple and efficient methodology for the synthesis of pyrido‐fused quinazolinones and dibenzoxazepinones has been developed. By palladium‐catalyzedcarbonylation/nucleophilic aromatic substitution reaction sequence, and with 1‐chloro‐2‐fluorobenzenes and 2‐aminopyridines or 2‐aminophenols as the starting materials, good yields of the desired products were be obtained.
Über in 11-Stellung amino-substituierte Dibenzo[b,f]-1, 4-thiazepine und -oxazepine. 9. Mitteilung über siebengliedrige Heterocyclen
作者:J. Schmutz、F. Künzle、F. Hunziker、R. Gauch
DOI:10.1002/hlca.19670500131
日期:——
Neuroleptics are found in the 11-amino substituted dibenzo[b,f]-1, 4-thiazepine and dibenzo[b,f]-1, 4-oxazepine series III. They may be synthesized by aminolysis of the iminochlorides VI and/or by Bischler-Napieralski ring closure of the urea II with POCl3.