Title:
【発明の名称】インデノ[1,2―e][1,3,4]オキサジアジンジカルボキレートの製造方法
Document Type and Number:
Japanese Patent JP2001501916
Kind Code:
A
Abstract:
Oxadiazines of formula (I), wherein R<1> is F, Cl or fluoralkoxy and R<2> is alkyl, are prepared by reacting hydrazine derivatives of formula (II) with a dialkoxymethane in the presence of a protic acid catalyst in an inert solvent under conditions which allow for the prompt removal of the alcohol by-product by distillation. The reaction can be combined with the preparation of the hydrazines derivatives (II) from the corresponding ketones and hydrazines NH2-NHR<3> in the presence of the same protic acid catalyst and an inert solvent. Oxadiazines I are useful as intermediates in the preparation of arthropodicidal agents.
Inventors:
De Yumas, Donald Theei
Application Number:
JP50808098A
Publication Date:
February 13, 2001
Filing Date:
July 31, 1997
Export Citation:
Assignee:
E. I. Dupont Do Nemour & Company
International Classes:
A01N47/38; C07D273/04; C07D498/00; (IPC1-7): C07D273/04; A01N47/38
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)