| 发明名称 |
FORFARANDE FOR FRAMSTELLNING AV GAMMA-PYRONER SAMT MELLANPRODUKT TILL ANVENDNING VID FRAMSTELLNING AV ETYLMALTOL |
| 摘要 |
1505029 Electrolytically producing intermediate pyran compounds PFIZER Inc 21 July 1976 [28 Aug 1975] 43608/76 Divided out of 1505028 Heading C7B [Also in Division C2] Compounds of the Formula II are made by subjecting compounds III to electrolysis in the presence of a solvent R<SP>1</SP>OH, where R<SP>1</SP> is C 1-6 alkyl. In Example 3 a compound II, when R<SP>1</SP> is CH 3 is made by submitting 2-(α- hydroxypropyl) furon to a constant current of 0À6 amperes in methanol containing conc. H 2 SO 4 . |
| 申请公布号 |
SE432929(B) |
申请公布日期 |
1984.04.30 |
| 申请号 |
SE19790010631 |
申请日期 |
1979.12.21 |
| 申请人 |
PFIZER INC |
发明人 |
P D * WEEKS;R P * ALLINGHAM |
| 分类号 |
A23C9/156;A23L27/20;C07D307/32;C07D307/60;C07D309/32;C07D309/40;C07D493/04;C11B9/00 |
主分类号 |
A23C9/156 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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