The synthesis of 2H-pyrido[3,4-c][1,2]benzoxazine-2,4(3H)-diones from 6-oxo-6H-1,2-oxazine-3-carboxylates

被引:1
|
作者
Ivanov, Dmitry S. [1 ]
Zaitseva, Elvira R. [1 ]
Smirnov, Alexander Yu. [1 ,2 ]
Nizovtsev, Alexey V. [1 ]
Baleeva, Nadezhda S. [1 ,2 ]
Baranov, Mikhail S. [1 ,2 ]
机构
[1] Russian Acad Sci, Shemyakin Ovchinnikov Inst Bioorgan Chem, 16-10 Miklukho Maklaya St, Moscow 117997, Russia
[2] Pirogov Russian Natl Res Med Univ, 1 Ostrovityanova St, Moscow 117997, Russia
基金
俄罗斯科学基金会;
关键词
imides; nitroacetic esters; oxazinones; condensation; 4H-1,2-BENZOXAZINES; OXIDATION;
D O I
10.1007/s10593-023-03168-0
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A simple procedure was developed for the synthesis of 2H-pyrido[3,4-c][1,2]benzoxazine-2,4(3H)-diones by the treatment of o-fluorophenyl-substituted 6-oxo-6H-1,2-oxazine-3-carboxylates with primary amines. The reaction proceeded according to the mechanism previously described for the formation of 3-(hydroxyimino)pyridine-2,6-diones followed by intramolecular nucleophilic substitution involving the hydroxyimino group to form the 1,2-oxazine ring.
引用
收藏
页码:101 / 104
页数:4
相关论文
共 50 条