1 . The yields of other cyclic acetals were between 62.

并在此條件下合成了多種環(huán)縮醛,收率62.

來自互聯(lián)網(wǎng)

2 . Eight acetals ( Ketals ) were synthesized under the optimal conditions.

在最佳條件下,合成了八個縮醛 ( 酮 ) 化合物.

來自互聯(lián)網(wǎng)

3 . The hydroxyl groups can be changed into esters, ethers, acetals and ketals, etc.

最常用的羥基保護基可歸納為三類:酯類 、 醚類和縮醛或縮酮類.

來自互聯(lián)網(wǎng)

4 . Using the same catalyst in THF acetals could be converted to the corresponding carbonyl compounds efficiently.

而在四氫呋喃和水的混合溶劑中,使用同樣的催化劑,則可以高效率地實現(xiàn)上述反應(yīng)的逆轉(zhuǎn)化過程.

來自互聯(lián)網(wǎng)

5 . Sorbitol acetals is the most one kind of the nucleating agents for polypropylene crystallization.

山梨醇縮醛是最重要的聚丙烯成核劑之一.

來自互聯(lián)網(wǎng)

1 . 縮醛類

acetalization 縮醛化＜作用＞acetals縮醛類acetate dye 醋酸纖維染料

acetals相關(guān)短語搭配

1 . 醋酸和醋

An alcohol evaporator for production of acetic acid and acetic anhydride exploded during operation ., 一種用于生產(chǎn)醋酸和醋酸酐的酒精蒸發(fā)釜在服役中發(fā)生了爆炸.

2 . 冰醋酸和醋

acetylaniline was synthesized by the acetylization ofp-methoxylaniline with acetic acid and acetic anhydride , then nitration and reduction .以對甲氧基苯胺為原料，用冰醋酸和醋酸酐作乙酰化劑，經(jīng)乙酰化、濃硝酸硝化、鐵粉還原合成了3-氨基-4-甲氧基乙酰苯胺。

1 . 以乙酸

paper introduces a synthesis method of iso-propyl acetate , using acetic acid and iso-propyl alcohol as raw material and neodymium oxide as catalyst .介紹了以乙酸和異丙醇為原料，以氧化釹為催化劑來制取乙酸異丙酯的方法。

1 . 冰乙酸

the synthesis n-butyl acetate with acetic acid and n-butanol as reactants and catalyst ferric chloride supported by silica was studied .研究了以二氧化硅負載三氯化鐵為催化劑，冰乙酸和正丁醇為原料合成乙酸正丁酯。

1 . 合成醋酸

in order to prepare cellulose acetate - propionate , the acid activation of cellulose was investigated in this paper .以合成醋酸丙酸纖維素中的酸活化為例對纖維素的酸活化進行了研究.