Die Erfindung betrifft ABS-Formmassen mit einem auch bei hoher Verarbeitungstemperatur deutlich verminderten Restbutadiengehalt.
本发明涉及一种即使在高温加工条件下也能显著降低残留丁二烯含量的 ABS 模塑料。
Steric Effects on the Stereochemistry of Old Yellow Enzyme-Mediated Reductions of Unsaturated Diesters: Flipping of the Substrate within the Enzyme Active Site Induced by Structural Modifications
作者:Elisabetta Brenna、Francesco G. Gatti、Alessia Manfredi、Daniela Monti、Fabio Parmeggiani
DOI:10.1002/adsc.201200471
日期:2012.10.8
The ene-reductase-mediated reduction of the carbon-carbon double bond of some alkyl 2-substituted butenedioates was investigated. The stereochemical outcome of the reaction was found to be influenced by stericeffects. Ethyl and butyl citraconates were converted into the corresponding alkyl (R)-2-methylsuccinates with excellent enantioselectivity, whereas ethyl and butyl mesaconates were completely