发明名称 |
Processes for preparing diacids, dialdehydes and polymers |
摘要 |
Alcohols are catalytically oxidized to aldehydes, in particular to benzaldehyde and diformylfuran, which are useful as intermediates for a multiplicity of purposes. The invention also relates to the polymerization of the dialdehyde and to the decarbonylation of the dialdehyde to furan. |
申请公布号 |
US8785667(B2) |
申请公布日期 |
2014.07.22 |
申请号 |
US201313950401 |
申请日期 |
2013.07.25 |
申请人 |
E I du Pont de Nemours and Company |
发明人 |
Grushin Vladimir;Manzer Leo Ernest;Partenheimer Walter |
分类号 |
C07D307/68;C07C45/29;C07D307/48;C07D307/36;C08G65/00;C07D307/46;C08G6/00 |
主分类号 |
C07D307/68 |
代理机构 |
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代理人 |
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主权项 |
1. A process for the preparation of a diacid of the formula HOOC—R′—COOH from an alcohol/aldehyde of the formula HOH2C—R′—(C═O)H, wherein R′ is an optionally substituted furan ring, comprising the step of:
contacting the alcohol/aldehyde with an oxidant in the presence of a metal bromide catalyst and a solvent or a solvent mixture, thereby forming a mixture of an acid/aldehyde having the formula HOOC—R′—(C═O)H and the diacid, and optionally isolating at least one of the acid/aldehyde or the diacid, wherein the oxidant is selected from the group consisting of oxygen, oxygen-containing gas and mixture thereof, wherein the metal bromide catalyst comprises two or more transition metals, and wherein the solvent or the solvent mixture comprises at least one aliphatic C2-C6 monocarboxylic acid compound. |
地址 |
Wilmington DE US |