-
公开(公告)号:CN1362414A
公开(公告)日:2002-08-07
申请号:CN02113934.2
申请日:2002-01-28
Applicant: 湘潭大学
IPC: C07F9/201
Abstract: 本发明公开了一种高纯度乙酰甲胺磷原粉的制备方法,由O,O-二甲基硫代磷酰胺或O,S-二甲基硫代磷酰胺为原料,制取高纯度乙酰甲胺磷原粉的,将O,O-二甲基硫代磷酰胺异构化和乙酰化或O,S-二甲基硫代磷酰胺乙酰化、乙酰甲胺磷原油中和、萃取、脱溶、结晶、洗涤、固液分离、干燥过程制备乙酰甲胺磷原粉。采用发明制备乙酰甲胺磷原粉得率高,纯度高,所使用的萃取液可回收利用,因此降低了生产成本,也无废液排放,对环境没有污染。
-
-
公开(公告)号:CN1122810A
公开(公告)日:1996-05-22
申请号:CN94117723.8
申请日:1994-11-08
Applicant: 清华紫光(集团)总公司 , 重庆农药厂
IPC: C07F9/201
Abstract: 本发明是生产有机磷农药(如氧乐果)重要原料氧硫磷酯的新工艺。该工艺对各种催化剂进行了优选,并对各种工艺条件进行了优化,在基本不改变生产原料,不大动工艺设备的情况下,使氧硫磷酯的收率提高15%左右,氧硫磷酯的杂质含量可降低8%左右。本工艺具有实用性强、投资小、见效快、收益高、产品质量稳定、工艺简单以及三废少等优点。
-
-
公开(公告)号:JPH06228172A
公开(公告)日:1994-08-16
申请号:JP24225093
申请日:1993-09-29
Applicant: HOECHST AG
Inventor: YOOAHIMU ENGERUSU , OIGEEN UURUMAN
IPC: C07D261/20 , C07F9/09 , C07F9/141 , C07F9/146 , C07F9/165 , C07F9/201 , C07F9/24 , C07F9/26 , C07F9/58 , C07F9/6512 , C07F9/6521 , C07F9/6539 , C07F11/00 , C07H1/02 , C07H21/00
-
16.
公开(公告)号:JPS63130566A
公开(公告)日:1988-06-02
申请号:JP27812986
申请日:1986-11-20
Applicant: DAIKIN IND LTD
Inventor: SEKI EIJI , HARADA TAKESHI , MASUTANI TETSUYA , KITAHARA KATSUHIKO
IPC: C07D333/20 , A01N37/28 , A01N37/44 , A01N37/46 , C07C67/00 , C07C239/00 , C07C241/00 , C07C247/12 , C07C259/06 , C07C311/06 , C07C311/19 , C07C313/00 , C07C313/06 , C07C323/60 , C07C325/00 , C07C327/22 , C07C333/04 , C07C333/08 , C07D261/04 , C07D261/12 , C07D309/12 , C07F9/201
Abstract: NEW MATERIAL:A compound expressed by formula I [A is formula II (X is halogen, CF3, lower alkyl, etc.; n is 0 or 1), etc.; R is H or lower alkyl; R and R are H, halogen or lower alkyl; R is H or tetrahydropyranyl; R is H, azide, etc.; R is H, etc.; R is H, halogen, hydroxy, etc.]. EXAMPLE:N[(2-Chlorophenyl)methyl]-N-hydroxy-2-(hydroxycarbonyl)acetamide. USE:A herbicide exhibiting excellent action to weeds such as Panicum crus-gali L., Cyperus microiria Steud, Cyperus rotundus L., Sicklepod, etc. PREPARATION:A compound expressed by formula III is reacted with a compound expressed by formula IV or formula V in a solvent such as benzene, etc., at 0-50 deg.C and then the resultant product is subjected to ring-closing reaction with an alkali to provide a compound expressed by formula I.
-
-
公开(公告)号:JPS53112819A
公开(公告)日:1978-10-02
申请号:JP2715778
申请日:1978-03-09
Applicant: CIBA GEIGY AG
Inventor: HORUSUTO TSUINKE , YOAHIMU ROORENTSU , EEBERUHARUTO OTSUTOO , RUDORUFU MAURU
-
公开(公告)号:JPH0233758B2
公开(公告)日:1990-07-30
申请号:JP6911589
申请日:1989-03-20
Applicant: CIBA GEIGY
Inventor: HORUSUTO TSUINKE , YOAHIMU ROORENTSU , EEBERUTOHARUTO OTSUTOO , RUDORUFU MAURU
-
公开(公告)号:JPS61207397A
公开(公告)日:1986-09-13
申请号:JP4648686
申请日:1986-03-05
Applicant: HOECHST AG
Inventor: YOOAHIMU ENGERUSU , OIGEEN UURUMAN
IPC: C07D261/20 , C07F9/09 , C07F9/141 , C07F9/146 , C07F9/165 , C07F9/201 , C07F9/24 , C07F9/26 , C07F9/58 , C07F9/6512 , C07F9/6521 , C07F9/6539 , C07F11/00 , C07H1/02 , C07H21/00
-
-
-
-
-
-
-
-
-