CN109627226A - 一种4-甲基-5-乙氧基恶唑的制备方法 - Google Patents
一种4-甲基-5-乙氧基恶唑的制备方法 Download PDFInfo
- Publication number
- CN109627226A CN109627226A CN201910036419.5A CN201910036419A CN109627226A CN 109627226 A CN109627226 A CN 109627226A CN 201910036419 A CN201910036419 A CN 201910036419A CN 109627226 A CN109627226 A CN 109627226A
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- Prior art keywords
- methyl
- ethyoxyl
- oxazole
- preparation
- carboxylic acid
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/30—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D263/34—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D263/36—One oxygen atom
- C07D263/42—One oxygen atom attached in position 5
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910036419.5A CN109627226B (zh) | 2019-01-15 | 2019-01-15 | 一种4-甲基-5-乙氧基恶唑的制备方法 |
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CN201910036419.5A CN109627226B (zh) | 2019-01-15 | 2019-01-15 | 一种4-甲基-5-乙氧基恶唑的制备方法 |
Publications (2)
Publication Number | Publication Date |
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CN109627226A true CN109627226A (zh) | 2019-04-16 |
CN109627226B CN109627226B (zh) | 2022-05-31 |
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CN201910036419.5A Active CN109627226B (zh) | 2019-01-15 | 2019-01-15 | 一种4-甲基-5-乙氧基恶唑的制备方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111909106A (zh) * | 2020-08-31 | 2020-11-10 | 厦门金达威维生素有限公司 | 一种4-甲基-5-乙氧基噁唑连续皂化脱羧的合成方法 |
CN114163341A (zh) * | 2021-12-13 | 2022-03-11 | 华中药业股份有限公司 | 一种杂质ts-2a的制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3796720A (en) * | 1971-04-23 | 1974-03-12 | Takeda Chemical Industries Ltd | Method for producing pyridoxine and intermediates therefor |
CN102321043A (zh) * | 2011-07-12 | 2012-01-18 | 湖北惠生药业有限公司 | 一种4-甲基-5-乙氧基-噁唑的制备方法 |
CN104447605A (zh) * | 2014-12-09 | 2015-03-25 | 湖北惠生药业有限公司 | 一种4-甲基-5-乙氧基噁唑的工业制备方法 |
-
2019
- 2019-01-15 CN CN201910036419.5A patent/CN109627226B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3796720A (en) * | 1971-04-23 | 1974-03-12 | Takeda Chemical Industries Ltd | Method for producing pyridoxine and intermediates therefor |
CN102321043A (zh) * | 2011-07-12 | 2012-01-18 | 湖北惠生药业有限公司 | 一种4-甲基-5-乙氧基-噁唑的制备方法 |
CN104447605A (zh) * | 2014-12-09 | 2015-03-25 | 湖北惠生药业有限公司 | 一种4-甲基-5-乙氧基噁唑的工业制备方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111909106A (zh) * | 2020-08-31 | 2020-11-10 | 厦门金达威维生素有限公司 | 一种4-甲基-5-乙氧基噁唑连续皂化脱羧的合成方法 |
CN111909106B (zh) * | 2020-08-31 | 2022-07-26 | 厦门金达威维生素有限公司 | 一种4-甲基-5-乙氧基噁唑连续皂化脱羧的合成方法 |
CN114163341A (zh) * | 2021-12-13 | 2022-03-11 | 华中药业股份有限公司 | 一种杂质ts-2a的制备方法 |
Also Published As
Publication number | Publication date |
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CN109627226B (zh) | 2022-05-31 |
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PB01 | Publication | ||
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TA01 | Transfer of patent application right |
Effective date of registration: 20211018 Address after: 264205 Wendeng economic and Technological Development Zone, Weihai City, Shandong Province Applicant after: Dijia Pharmaceutical Group Co.,Ltd. Applicant after: DISHA PHARMACEUTICAL GROUP Co.,Ltd. Address before: 266440 No.268, Tianrun Road, Wendeng economic and Technological Development Zone, Weihai City, Shandong Province Applicant before: WEIHAI DISU PHARMACEUTICAL Co.,Ltd. Applicant before: DISHA PHARMACEUTICAL GROUP Co.,Ltd. Effective date of registration: 20211018 Address after: 264205 268 Tianrun Road, Wendeng economic and Technological Development Zone, Weihai, Shandong Applicant after: Dijia Pharmaceutical Group Co.,Ltd. Address before: 264205 Wendeng economic and Technological Development Zone, Weihai City, Shandong Province Applicant before: Dijia Pharmaceutical Group Co.,Ltd. Applicant before: DISHA PHARMACEUTICAL GROUP Co.,Ltd. |
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CP03 | Change of name, title or address | ||
CP03 | Change of name, title or address |
Address after: No. 268, Tianrun Road, Wendeng Economic and Technological Development Zone, Weihai City, Shandong Province, 264200 Patentee after: Dijia Pharmaceutical Group Co.,Ltd. Address before: 264205 268 Tianrun Road, Wendeng economic and Technological Development Zone, Weihai, Shandong Patentee before: Dijia Pharmaceutical Group Co.,Ltd. |