申请人:HOECHST UK LIMITED
公开号:EP0170118A2
公开(公告)日:1986-02-05
A process for the production of a compound of formula
in which
R represents an aryl group, especially a phenyl group, which may be unsubstituted or substituted by one or two substituents, which may be the same or different, selected from methyl, trifluoromethyl, nitro and cyano groups, and chlorine, fluorine and bromine atoms;
R1 represents a hydrogen atom, a straight or branched chain alkyl group having from 1 to 6 carbon atoms or a cycloalkyl group having from 3 to 7 carbon atoms, which alkyl or cycloalkyl group is unsubstituted or substituted, or
R1 represents a straight or branched chain alkenyl group having from 2 to 6 carbon atoms or a straight or branched chain alkynyl group having from 3 to 6 carbon atoms;
R represents an aryloxy group, especially a phenoxy group, which is unsubstituted or is substituted as defined above for aryl groups R; or
R2 represents an -NHR3 group in which R3 represents a hydrogen atom or a straight or branched chain alkyl group having from 1 to 6 carbon atoms that is unsubstituted or substituted, or an aromatic or non-aromatic heterocyclic group as defined above; or
R2 represents a group NHR3, and R1 and R3, together with the atoms to which they are attached, form a 5- or 6-membered ring containing two nitrogen atoms, and p represents the integer 1 or 2, which comprises (a) reacting a compound of formula II
in which R and p are as defined above, with an amine of formula III
in which R1 is as defined above and, if desired, (b) reacting a resulting compound of formula I in which R2 represents an optionally substituted aryloxy group with an amine of formula IV
in which R3 is as defined above, to give a compound of formula I in which R2 represents group NHR3; or (c) reacting a compound of formula II as defined above with a diamine of formula V
in which n represents 2 or 3 to give a compound of formula I in which R2 represents a group NHR3, and R1 and R3, together with the atoms to which they are attached, form a 5- or 6-membered ring containing two nitrogen atoms and, if desired, at any stage, (d) oxidising a resulting compound of formula I in which p represents the integer 1 to give the corresponding compound in which p represents the integer 2.
The compounds of formula I are useful in the manufacture of 5-substituted 1, 2, 4, 6-thiatriazines.
一种生产式化合物的工艺
其中
R 代表芳基,特别是苯基,可以未被取代或被一个或两个取代基取代,这些取代基可以相同或不同,选自甲基、三氟甲基、硝基和氰基以及氯、氟和溴原子;
R1 代表氢原子、具有 1 至 6 个碳原子的直链或支链烷基或具有 3 至 7 个碳原子的环烷基,该烷基或环烷基是未取代的或取代的,或
R1 代表具有 2 至 6 个碳原子的直链或支链烯基,或具有 3 至 6 个碳原子的直链或支链炔基;
R 代表芳氧基基团,特别是苯氧基基团,该基团未被取代或被如上定义的芳基基团 R 所取代;或
R2 代表-NHR3 基团,其中 R3 代表氢原子或具有 1-6 个碳原子的未取代或被取代的直 链或支链烷基,或如上所定义的芳香族或非芳香族杂环基团;或
R2 代表基团 NHR3,且 R1 和 R3 与它们所连接的原子一起形成含有两个氮原子的 5 或 6 元环,且 p 代表整数 1 或 2,其中包括 (a) 使式 II 的化合物反应
其中 R 和 p 如上定义,与式 III 的胺反应
其中 R1 如上文所定义,如果需要,(b) 将得到的式 I 化合物(其中 R2 代表任选取代的芳氧基)与式 IV 的胺反应
其中 R3 如上文所定义,从而得到 R2 代表 NHR3 基团的式 I 化合物;或 (c) 将上文所定义的式 II 化合物与式 V 二胺反应
其中 n 代表 2 或 3,以得到式 I 化合物,其中 R2 代表基团 NHR3,且 R1 和 R3 与它们所连接的原子一起形成含有两个氮原子的 5 或 6 元环,如果需要,在任何阶段,(d) 氧化得到的式 I 化合物,其中 p 代表整数 1,以得到相应的式 I 化合物,其中 p 代表整数 2。
式 I 化合物可用于制造 5-取代的 1,2,4,6-噻三嗪。