The effect of reaction conditions on the yield of carboxylicester was investigated.
考察了反应条件对酯化产率的影响。
2
The results of application evaluation indicate that this mixed carboxylicester is a kind of flotation agent for coal preparation with good performance.
经应用评价结果表明，该羧酸混合酯是一种性能优异的选煤浮选剂。
3
Corticoid 17, 21-dicarboxylic esters and corticosteroid 17-carboxylicester 21-carbonic esters, processes for their preparation and pharmaceuticals containing these compounds.