| 发明名称 |
METHOD OF PREPARING ALIPHATIC CARBOXYLIC ACID HYDRAZIDES |
| 摘要 |
FIELD: organic synthesis. SUBSTANCE: aliphatic C2-C9-carboxylic acids are heated with hydrazine hydrate at molar ratio 1:(1.3-1.7) at 105-118 C and under inert gas flow. Reaction mixture is then mixed with water at volume ratio 1:(4-5) and cooled to temperature not superior to 20 C. Resultant precipitate is filtered off, washed with water, and dried. EFFECT: improved process safety, achieved organoleptic properties of product with no additional purification, and minimized waste formation. 2 dwg, 1 tbl, 3 ex
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| 申请公布号 |
RU2147020(C1) |
申请公布日期 |
2000.03.27 |
| 申请号 |
RU19980104293 |
申请日期 |
1998.02.16 |
| 申请人 |
INSTITUT TEKHNICHESKOJ KHIMII URAL'SKOGO OTDELENIJ;ROSSIJSKIJ NAUCHNYJ TSENTR "PRIKLADNAJA KHIMIJA";ROSSIJSKIJ NTS PRIKLADNAJA KHI |
发明人 |
DROZDETSKIJ A.G.;RADUSHEV A.V.;TURBIN A.S.;GUSEV V.JU.;DROZDOVA S.V.;SHEKHONINA E.G.;CHEKANOVA L.G. |
| 分类号 |
C07C241/04;C07C243/28;(IPC1-7):C07C241/04 |
主分类号 |
C07C241/04 |
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