One-pot synthesis of substituted indole N-oxides:: TiCl4-mediated Baylis-Hillman reaction of α-oxo cyclic ketene-S,S-acetal with o-nitrobenzaldehydes and subsequent intramolecular cyclization

被引:23
|
作者
Pan, Wei [1 ]
Dong, Dewen [1 ]
Sun, Shaoguang [1 ]
Liu, Qun [1 ]
机构
[1] NE Normal Univ, Dept Chem, Changchun 130024, Peoples R China
关键词
Baylis-Hillinan reaction; indole N-oxides; alpha-oxo ketene-S; S-acetals; TiCl4;
D O I
10.1055/s-2006-939074
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
One-pot synthesis Of Substituted indole N-oxides 3 has been developed based on the TiCl4-mediated Baylis-Hillman reaction of alpha-oxo cyclic ketene-S,S-acetal 1 with o-nitrobenzaldehydes 2 and subsequent intramolecular cyclization reaction.
引用
收藏
页码:1090 / 1094
页数:5
相关论文
共 3 条
  • [1] Synthesis of 3-substituted-4-hydroxyquinoline N-oxides from the Baylis-Hillman adducts of o-nitrobenzaldehydes
    Lee, KY
    Kim, JM
    Kim, JN
    TETRAHEDRON, 2003, 59 (03) : 385 - 390
  • [2] One-Pot Synthesis of Quinoxaline N-Oxides via Radical-Mediated Cyclization of Ketene N,S-Acetals
    Kumar, Ganesh
    Ray, Subhasish
    Shukla, Gaurav
    Singh, Maya Shankar
    SYNTHESIS-STUTTGART, 2023, 55 (23): : 3981 - 3990
  • [3] One-pot synthesis of substituted isothiazol-3(2H)-ones:: Intramolecular annulation of α-carbamoyl ketene-S,S-acetals via PIFA-Mediated N-S bond formation
    Huang, Jie
    Lu, Yumei
    Qiu, Baofu
    Liang, Yongjiu
    Li, Nan
    Dong, Dewen
    SYNTHESIS-STUTTGART, 2007, (18): : 2791 - 2796