S-(5, 5-dimethyl-4, 5-dihydroisoxazole-3-yl) ethyl sulfate as well as synthesis method and application of S-(5, 5-dimethyl-4, 5-dihydroisoxazole-3-yl) ethyl sulfate

A technology of dihydroisoxazole and ethyl ethosulfate, which is applied in the production of organic chemistry and bulk chemicals, can solve the problems of great harm to the environment and human beings, difficult to treat wastewater, etc., and achieves low equipment requirements, fast reaction speed, The effect of high product purity
CN113135867AActive Publication Date: 2021-07-20SHANDONG RUNBO BIOTECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANDONG RUNBO BIOTECH CO LTD
Publication Date
2021-07-20

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Abstract

The invention discloses S-(5, 5-dimethyl-4, 5-dihydroisoxazole-3-yl) ethyl sulfate as well as a synthesis method and application of the S-(5, 5-dimethyl-4, 5-dihydroisoxazole-3-yl) ethyl sulfate. According to the preparation method, 3-halogenated-5, 5-dimethyl-4, 5-dihydroisoxazole reacts with potassium thioacetate to prepare S-(5, 5-dimethyl-4, 5-dihydroisoxazole-3-yl) ethyl sulfate. According to the method, the synthesis process is simplified, the reaction speed is high, the product purity is high, the yield is high, the reaction condition is mild, the equipment cost is low, the synthesis process and the post-treatment process are extensive, the product is easy to separate, the obtained product can be used as a pyroxasulfone intermediate, and a plurality of defects of the 5, 5-dimethyl-4, 5-dihydroisoxazole thiamidine hydrochloride intermediate are avoided.
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Description

Technical field

[0001] The present invention relates to a S- (5-dimethyl-4, 5-dihydro isoxazole-3-yl) sulfate and its synthetic method, and also involves the S- (5, 5-) Application of methyl-4,5-dihydro isoxazole-3-yl) ethyl sulfate as an intermediate of sulfone pyrazole. Background technique

[0002] Pyroxasulfone is an iszazole herbicide, developed by Japanese Combination Chemical Co., Ltd. is 3- [5- (Difluoromethoxy) -1-methyl-3- ( Trifluoromethyl) pyrazole-4-ylmethylsulfonyl] -4,5-dihydro-5,5-dimethyl-1,2-isoxazole, molecular formula C 12 Hide 14 Fly 5 N 3 O 4 S, the molecular weight is 391.32, and the CAS login number is 44,7399-55-5. Sulfonepotzole can be used in the pre-buds before the field of the field, after administration, the weed seedlings and young buds, inhibit the early growth of seedlings, destroying the biopsy and germ sheath, is a plant body VLCFA (extreme long side Severe potential inhibitors of chain fatty acids) (C20 ~ C30) biosynthesis. The structure is as ...

Claims

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