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Author:
Journal / Book Title:
Year:
Volume:
Issue:
o wan ji lin zuo er lv de he cheng
Author(s):
LIAO Dezhong
,
LIU Zuojie
Pages:
27
-
31
Year:
1992
Issue:
1
Journal:
Journal of Yueyang Normal University
Keyword:
磷酰
;
烷基
;
稀释剂
;
物料配比
;
反应温度
;
反应时间
;
克线磷
;
中间体
;
乙基
;
EtOH
;
Abstract:
<正> O——烷基磷酰二氯是制备某些农药、医药的重要中间体,也是合成叔磷酸酯和胺基磷酸酯(如某些阻燃剂)的中间体,是一类很有用途的化合物。如O——乙基磷酰二氯(E
t
OPOCl
2
)是合成优良的杀线虫剂——克线磷的必备中间体。由于磷羰基上的氧原子的强吸电子能力,使得其磷——氯键比硫代物中的磷——氯键活泼得多,在室温,特别是在碱性条件下易发生水解。因此这类化合物的制备比较困难。目前我国O——烷基磷酰二氯的生产几乎是空白,合成方法的研究也不多,国外有关该类化合物的合成研究较多,归纳起来大致有以下几种。
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