Highly regioselective synthesis of 1-aryl-3 (or 5)-alkyl/aryl-5 (or 3)-(N-cycloamino)pyrazoles

被引:72
作者
Peruncheralathan, S
Yadav, AK
Ila, H [1 ]
Junjappa, H
机构
[1] Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India
[2] BioOrgan & Appl Mat Pvt Ltd, Bangalore 560058, Karnataka, India
关键词
D O I
10.1021/jo051478u
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] An efficient highly regioselective protocol for the synthesis of isomeric 1,3-diaryl (or 1-aryl-3-alkyl) and 1,5-diaryl (or 1-aryl-5-alkyl)-5 (or 3)-(N-cycloamino)pyrazoles has been reported by cyclocondensation of common alpha-oxoketene N,S-acetal precursors with arylhydrazines by variation of reaction conditions.
引用
收藏
页码:9644 / 9647
页数:4
相关论文
共 36 条
  • [1] ABDELRAHMAN RM, 1994, PHARMAZIE, V49, P729
  • [2] AGGARWAL V, 1982, SYNTHESIS-STUTTGART, P214
  • [3] Studies towards the synthesis of Fipronil® analogues:: improved decarboxylation of α-hydrazonoacid derivatives
    Ancel, JE
    El Kaïm, L
    Gadras, A
    Grimaud, L
    Jana, NK
    [J]. TETRAHEDRON LETTERS, 2002, 43 (46) : 8319 - 8321
  • [4] Atlan V, 2000, SYNLETT, P489
  • [5] Braibante MEF, 2003, SYNTHESIS-STUTTGART, P1160
  • [6] CHAUHAN SMS, 1975, SYNTHESIS-STUTTGART, P798
  • [7] COISPEAU G, 1970, B SOC CHIM FR, P2717
  • [8] Cooper C. B., 2002, [No title captured], Patent No. [PCT WO 18346 A1, 18346]
  • [9] One-pot synthesis of 5-(substituted-amino)pyrazoles
    Dodd, DS
    Martinez, RL
    [J]. TETRAHEDRON LETTERS, 2004, 45 (22) : 4265 - 4267
  • [10] ELGUERO J, 1973, B SOC CHIM FR II-CH, P3401