溴化催化劑 的英文怎麼說
中文拼音 [xiùhuàcuīhuàjì]
溴化催化劑
英文
bromination catalyst-
Acetylation between alcohol and benzoyl oxide was carried out using znbr2 as a lewis acid catalyst in solvent - free condition. some structures were characterized by nmr and ir
以溴化鋅為催化劑，在無溶劑條件下實現了醇與苯甲酸酐的酰化反應，部分產物經nmr和ir表徵。The results showed that in scco2 cyclotrimerization of terminal acetylenes was carried out smoothly to regioselectively afford the corresponding benzene derivaties using pdbr2 as the catalyst
研究結果表明：二氧化碳介質中使用溴化鈀為催化劑可以順利地催化炔烴發生環三聚反應，區域選擇性生成含苯環芳香族化合物。Tetrabromobis phenol a - diallyl oxide with higher yield was synthesized in water by using phase transferring catalyst
摘要主要研究了在相轉移催化劑存在下，水作溶劑，合成四溴雙酚a -雙烯丙基醚的新工藝。Ethyl vanillin was synthesized by the phase - transfer catalysis cteab and o - ethoxyphenol, which was prepared from pyroeatehol with an overall yield of 55. 2 %, and the factors in the reaction, such as phase - transfer catalysis and temperature, were discussed
摘要以鄰苯二酚為原料，首先合成中間體鄰乙氧基苯酚，然後以十六烷基三乙基溴化銨為相轉移催化劑合成了乙基香蘭素，考察了相轉移催化劑的選擇及反應溫度，最後收率為55 . 2 % 。A variety of aldehydes were converted into acylals in good yields with anhydride in the presence of a catalytic amount of zinc bromide under solvent - free conditions
以醛和酸酐為原料，溴化鋅為催化劑，無溶劑條件下高產率地合成了偕二酸酯（其中醛與苯甲酸酐的反應是首次報道） 。分享友人