Title:
【発明の名称】縮合トリアゾールの製造方法並びに新規な縮合トリアゾール及びその使用法
Document Type and Number:
Japanese Patent JP2002519426
Kind Code:
A
Abstract:
A process for preparing fused triazoles of formula Iwhere:X-X is C-O, C-S, C-SO, C-SO2, or C-NR1;V is C=W2, R1R2C-C(=W2)- or C(=V2)-C(=W2);W1, W2 are oxygen or sulfur;which comprises reacting substituted N-aminoureas are reacted with formaldehyde or paraformaldehyde to give the corresponding methyleneimino ureas; cyclizing these in the presence of catalytic amounts of acid or metal oxide to give tetrahydro-4H-1,3,4-oxa(or thia)diazines, and cyclizing the fused triazoles using phosgene or a phosgene substitute. Also disclosed are novel fused triazoles of the formula I'
Inventors:
Hamprecht, Gerhard
Menke, Olaf
Reinhard, Robert
Scheffer, Peter
Tsagaru, Cyril
Martin, Otten
Westphalia, Karl-Otto
Walther, Helmut
Menke, Olaf
Reinhard, Robert
Scheffer, Peter
Tsagaru, Cyril
Martin, Otten
Westphalia, Karl-Otto
Walther, Helmut
Application Number:
JP2000558103A
Publication Date:
July 02, 2002
Filing Date:
June 29, 1999
Export Citation:
Assignee:
BASF Akchen Gezel Shaft
International Classes:
A01N43/90; C07C275/34; C07C275/40; C07C281/08; C07C337/08; C07D498/04; C07D513/04; C07D487/04; (IPC1-7): C07D498/04; A01N43/90; C07C281/08; C07C337/08; C07D513/04
Attorney, Agent or Firm:
Sato Eto