The present invention relates to the co-production of unsaturated aldehydes via a crossed-aldol condensation reaction catalyzed by recyclable water-soluble phase-transfer catalysts or the hydroxides thereof. The aldehydes are then hydrogenated to the desired alcohol products or saturated aldehyde feed stocks. Specifically, methods in which 2,4-diethyloctanol is co-produced with 2-ethylhexanol in batch and continuous processes are described. Recovery of the phase-transfer catalyst through water washing followed by “salting out” from the washings is also demonstrated.
The present invention relates to the co-production of unsaturated aldehydes via a crossed-aldol condensation reaction catalyzed by recyclable water-soluble phase-transfer catalysts or the hydroxides thereof. The aldehydes are then hydrogenated to the desired alcohol products or saturated aldehyde feed stocks. Specifically, methods in which 2,4-diethyloctanol is co-produced with 2-ethylhexanol in batch and continuous processes are described. Recovery of the phase-transfer catalyst through water washing followed by “salting out” from the washings is also demonstrated.
Vanin; Krut-skii; Krut-skaya, Journal of applied chemistry of the USSR, 1986, vol. 59, # 2 pt 2, p. 428 - 430
作者:Vanin、Krut-skii、Krut-skaya、Safiulina、Korneva
DOI:——
日期:——
BRANCHED TRIALKYLAMINE PRECURSORS, INTERMEDIATES, PRODUCTS MADE THEREFROM AND PROCESSES OF MANUFACTURE
申请人:Eastman Chemical Company
公开号:US20190218170A1
公开(公告)日:2019-07-18
The invention provides branched hydrophobes for the production of surfactants with improved properties over linear hydrophobes. The invention also provides branched C10-12 enals and aldehydes that are oxidized to branched fatty acids or hydrogenated to branched fatty alcohols and further derivatized to surfactants, through ethoxylation or esterification and other or subsequent reactions. The invention further provides surfactants made from the branched trialkylamine intermediates, including amphoteric, cationic and nonionic surfactants.