A simple and efficient method for the synthesis of 1,3,4-trisubstituted or 3,4-disubstituted pyrroles has been developed. The reaction represents the first time that pyrroles are synthesized directly from readily available aldehydes and amines (anilines) as starting materials. This method has been successfully applied to the rapid synthesis of purpurone.
Method and composition for using stabilized beta-carotene as cetane improver in hydrocarbonaceous diesel fuels
申请人:Jordan L Frederick
公开号:US20050160662A1
公开(公告)日:2005-07-28
A diesel fuel additive is provided that includes beta-carotene stabilized with 2,2,4-trimethyl-6-ethoxy-1,2-dihydro-quinoline. The additive may be added to any liquid hydrocarbon fuel, solid hydrocarbon fuel, or other hydrocarbonaceous combustible fuel to reduce emissions of undesired components during combustion of the fuel, provide improved fuel economy, engine cleanliness, and/or performance. A method for preparing the additive is also provided.
METHOD AND COMPOSITION FOR USING STABILIZED BETA-CAROTENE AS CETANE IMPROVER IN HYDROCARBONACEOUS DIESEL FUELS
申请人:Oryxe Energy International, Inc.
公开号:EP1532230A2
公开(公告)日:2005-05-25
[EN] METHOD AND COMPOSITION FOR USING STABILIZED BETA-CAROTENE AS CETANE IMPROVER IN HYDROCARBONACEOUS DIESEL FUELS<br/>[FR] COMPOSITION ET PROCEDE D'UTILISATION DU BETA-CAROTENE STABILISE COMME AMELIORANT DU CETANE DANS DES COMBUSTIBLES DIESEL HYDROCARBONES
申请人:Oryxe energy int inc
公开号:WO2003104360A2
公开(公告)日:2003-12-18
A diesel fuel additive is provided that includes beta-carotene stabilized with 2,2,4-trimethyl-6-ethoxy-1,2-dihydroquinoline. The additive may be added to any liquid hydrocarbon fuel, solid hydrocarbon fuel, or other hydrocarbonaceous combustible fuel to reduce emissions of undesired components during combustion of the fuel, provide improved fuel economy, engine cleanliness, and/or performance. A method for preparing the additive is also provided.
Mild and ambient annulations for pyrrole synthesis from amines and arylacetaldehydes
作者:Huawen Huang、Lichang Tang、Jinhui Cai、Guo-Jun Deng
DOI:10.1039/c5ra24006a
日期:——
A mild and ambient pyrrolesynthesis via copper-catalyzed aerobic cyclization of alkylamines and arylacetaldehydes is described. This method provided alternative access to a range of 1,3,4-trisubstituted pyrroles under environmentally friendly reaction conditions.