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Synthesis and Characterization of Herbicidal Ethofumesate(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2000年03期
Page:
215-218
Research Field:
Publishing date:

Info

Title:
Synthesis and Characterization of Herbicidal Ethofumesate
Author(s):
LiXiaomin HuaWansen LuLude
School of Chemical Engineering,NUST,Nanjing 210094
Keywords:
herbicide synthesis characterization ethofumesate
PACS:
TQ45
DOI:
-
Abstract:
2- ethoxy- 2, 3- dihydro- 3, 3- dimethyl- benzofuran- 5- y l methanesu-l fonate ( ethofumesate) w as prepared by t reat ing isobutyraldehyde with morpholine , condensing the enamine w ith benzoquinone, and treat ing 2- morpholino- 2, 3- dihydro- 3, 3- dimethy l - benzofuran- 5- ol w ith methanesulfonylchloride and alcohol. The structure of samples w as characterized by infrared spectroscopy and nuclear mag netic resonance; and the purity of ethofumesate was measured by high performance liquid chromatography; the melt ing point of the samples w as measured at the same t ime. The results show that the yield of ethofumesate w as 79. 2 % in the opt imum synthesis condit ion.

References:

1 Wilson G. New herbicides for postmergence application in sug erbeet. Weed Technol, 1994, 8( 4) :807~ 811
2 Johnson B, Carr ow N. Influence of fenox aprop and ethofumesate treatments on suppression of common bermudagrass. Weed Techno l, 1995, 9( 4) : 789~ 793
3 Robert D, David M, Mary E. 2, 3- dihydro- 3, 3- dimethyl- 2, 5- benzofurandiol from isobutyraldehyde and 3184457. 1965- 05- 18
5 Har ris J F. Neue benzofurane und ver fahren zu ihrer herstellung. DE, 253789111976- 03- 18
6 Louis L S. ( 2 - tertiar y amino ethyl) - hy droquinones, low er alkanoyl deriv at ives thereof and processes for their productio n. US, 3291798. 1966- 12- 01
7 唐除痴, 陈彬, 杨华铮等. 农药化学. 天津: 南开大学出版社, 1998. 566~ 573

Memo

Memo:
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Last Update: 2013-03-25