1) selective hydrogenation
选择性氢化
1.
The ester was reduced with NaBH 4 in absolute ether at 20 ℃～30 ℃ for 10 min,the product alcoholdienyl was selective hydrogenation whit Mo(CO) 6 in an autoclave at 120 ℃～140 ℃ for 3 h～6 h to give product,the yield is 74.
山梨酸在苯中用无水乙醇酯化 ,酯化产物在绝对无水乙醚中用NaBH4在 2 0℃～ 30℃下还原约 10min ,再将还原产物二烯醇在Mo(CO) 6存在 ,温度 12 0℃～ 14 0℃下于高压反釜中进行选择性氢化反应 3h～6h ,即得产品 ,收率 74 8%。
2.
Regioselective hydrogenation of 2,3 pentanedione was investigated over poly ( N vinyl 2 pyrrolidone) stabilized platinum nanoclusters (PVP Pt) with metal cation as modifier.
因此 ,在研究不对称α 二酮的对映体选择性氢化时还必须顾及其区域选择性氢化 。
3.
In this study ,we used soybean oil as material, evaluated three kinds of Pricat Ni catalyst in common use of hydrogenation; investigated the technical conditions of full hydrogenation of soybean oil and then researched the effect of selective hydrogenation conditions on the species and contents of trans fatty acids.
本论文以大豆油为原料,对油脂氢化工业常用的三种Pricat镍催化剂进行了评价,优化了大豆油极度氢化工艺条件,并研究了选择性氢化条件对氢化油脂中反式脂肪酸种类以及含量的影响,主要结论如下: 在一定的催化剂浓度下,考察三种Pricat镍基催化剂对大豆油的氢化过程,结果表明,三种Pricat镍基催化剂的催化活性依次为9920型>9910型>9908型;Pricat9908型催化剂得到的氢化油脂塑性范围较窄,适合生产代可可脂类专用油脂产品;Pricat9910型催化剂和Pricat9920型催化剂进行大豆油的氢化,能得到塑性范围比较宽的氢化油脂产品,适合作为人造奶油和起酥油的基料油;Pricat9920型催化剂较适合极度氢化油的生产。
3) selective oxidation of hydrogen
氢选择性氧化
1.
Deactivation of Pt/Al_2O_3 catalyst for selective oxidation of hydrogen from ethylbenzene dehydrogenation was studied.
考察和分析了Pt/Al2O3体系的乙苯脱氢-氢选择性氧化催化剂的失活原因。
4) enantioselective hydrogenation
对映选择性氢化
补充资料：连续性与非连续性(见间断性与不间断性)
连续性与非连续性(见间断性与不间断性)
continuity and discontinuity
11an父ux泊g四f“山。麻以角g、.连续性与非连续性(c。nt，n琳t:nuity一)_见间断性与不间断性。and diseo红ti-
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条