1) aldopentose
[,ældə'pentəus]
戊醛糖
2) d-xylose
d-戊醛糖
3) penturonic acid
戊糖醛酸
4) valeraldehyde
[vælə'rældihaid]
戊醛
1.
Process of hydroformylation of butene mixture to produce valeraldehyde by using water - soluble rhodium - phosphine catalyst was studied.
采用自制的水溶性铑膦体系催化剂,对混合丁烯氢甲酰化反应制戊醛的工艺进行了研究,得到的较优工艺参数为:反应温度100-120℃,反应压力3。
2.
The effects of reaction temperature, reaction pressure, amount of 1-butene, concentration of surfactant and catalyst on the convertion ratio and selectivity in the process of preparing valeraldehyde from 1-butene using water-soluble rhodium-phosphine complex as catalyst were investigated.
考察了采用水溶性铑膦催化体系将 1-丁烯氢甲酰化制备戊醛过程中的反应温度、压力、烯烃用量、表面活性剂的添加、催化剂浓度等因素对反应转化率及产物选择性的影响。
3.
Solid basic catalysts for aldol condensation of valeraldehyde were prepared in the lab, and the effects of reaction conditions such as alkali metal, catalyst support, reaction temperature, pressure, LHSV were examined.
自制了固体碱催化剂用于催化戊醛缩合反应 ,考察了碱金属、载体、反应温度、反应压力、空速等条件对反应的影响。
6) pentose
[英]['pentəus] [美]['pɛntos]
戊糖
1.
Research on optimum of fermentation system during co-fermentation of pentose and hexose to fuel ethanol;
戊糖和己糖共发酵生产燃料乙醇发酵体系优化研究
2.
Fermentation of Pentose and Hexose to Ethanol by PVA Immobilized Cells of Pichia Stipitis;
聚乙烯醇固定化酵母的戊糖已糖同步发酵制备乙醇
3.
In the research on a pilot plant, lignocelluloses were steam exploded, cellulose and hemicellulose were hydrolyzed with cellulose enzyme synthesized by Trichoderma reesei strain, and the resulted pentoses and hexoses were fermented to ethanol by Pichia stipitis.
含戊糖己糖的水解糖液经树干毕赤酵母发酵转化,糖利用率为87。
补充资料：醛糖二糖酸
分子式：
CAS号：
性质：又称醛糖二糖酸；双己糖醛酸。为醛糖酸(aldonic acid)和葡萄糖各1分子结合的化合物。经水解变成醛糖酸。如在水解前，先行甲基化，以固定水解产物的位置，就能得知原来的二糖类中的糖苷结合的位置。以麦芽糖为例，由将其甲基化后生成的四甲基葡糖酸，可知其麦芽糖酸是2,3,5,6-四甲基衍生物，故能推断出原来糖苷的结合是在4位碳原子上。还原性二糖类经溴氧化即得。例如麦芽糖经溴氧化即制成麦芽糖酸。用作生化试剂。
CAS号：
性质：又称醛糖二糖酸；双己糖醛酸。为醛糖酸(aldonic acid)和葡萄糖各1分子结合的化合物。经水解变成醛糖酸。如在水解前，先行甲基化，以固定水解产物的位置，就能得知原来的二糖类中的糖苷结合的位置。以麦芽糖为例，由将其甲基化后生成的四甲基葡糖酸，可知其麦芽糖酸是2,3,5,6-四甲基衍生物，故能推断出原来糖苷的结合是在4位碳原子上。还原性二糖类经溴氧化即得。例如麦芽糖经溴氧化即制成麦芽糖酸。用作生化试剂。
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