发明名称 |
Способ получени α,β-ненасыщенных кетонов |
摘要 |
Production of alpha , beta -unsaturated ketones by reaction of aldehydes with ketones in the liquid phase in a tubular reactor is such that: (i) the catalyst is in the continuous phase and at least one starting material is in a disperse phase; and (ii) the loading factor of the tubular reactor is ≥ 0.8. Production of alpha , beta -unsaturated ketones of formula (I) by reaction of aldehydes of formula (II) with ketones of formula (III) in the liquid phase in a tubular reactor is such that (i) the catalyst is in the continuous phase and at least one starting material is in a disperse phase; and (ii) the loading factor of the tubular reactor is ≥ 0.8. R<1> and R<2> = optionally unsaturated aliphatic or aliphatic-cycloaliphatic 1-20 (especially 1-16)C hydrocarbyl or optionally unsaturated cycloaliphatic 5-12C hydrocarbyl (which can contain alkyl substituents or an endoalkylene group), araliphatic 7-15C hydrocarbyl such as benzyl or aromatic hydrocarbyl such as phenyl; and R<3> = H or 1-10C aliphatic hydrocarbyl.; further, R<1> and R<3>, together with both adjacent C atoms can be members of an alicyclic ring and also one or more methylene groups not alpha to a carbonyl group can be substituted in R<1> R<3> by an O or S atom |
申请公布号 |
RU2002103207(A) |
申请公布日期 |
2003.11.27 |
申请号 |
RU20020103207 |
申请日期 |
2002.02.08 |
申请人 |
ОКСЕНО ОЛЕФИНХЕМИ ГМБХ (DE) |
发明人 |
БЮШКЕН Вильфрид (DE);ВИЗЕ Клаус-Дитер (DE);ПРОЦМАНН Гуидо (DE) |
分类号 |
C07C49/20;C07B61/00;C07C29/17;C07C45/62;C07C45/74;C07C49/203 |
主分类号 |
C07C49/20 |
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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