1、

The phenomonon was explained in view of the mechanism of chemical cyclization of amic acid.

从聚酰胺酸化学环化反应机理出发对这一结果给予了解释.

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2、

Sodium ethylate was used as catalyst in Baker-Venkataraman of cyclization, and all factors were studied.

环合反应采用乙醇钠作为Baker-Venkataraman重排反应的催化剂, 研究了影响反应的各个因素.

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3、

Methods: Starting from diethanolamine, BP 897 was prepared via chlorination, cyclization, substitution aminolysis and condensation reaction.

方法: 以二羟乙基胺为起始原料, 经过氯化 、 环合 、 取代、肼解、缩合等反应合成BP897.

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4、

Methods: Simvastatin was synthesized from lovastatin via acetylization, methylation, hydrolytic decomposition and cyclization reactions.

方法: 以洛伐他汀为原料,通过酰化 、 甲基化 、 水解、环合等反应合成了辛伐他汀.

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5、

The effect of solvents and steric hindrance on the stereochemistry of cyclization is investigated in details.

并且考察了在环合反应中溶剂和空间位阻对立体选择性的影响.

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6、

This paper describes the various cyclization reaction by neighboring group participation.

本文总结了邻基参与的各类环化反应.

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7、

Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.

综述了二碘化钐在分子内环化反应中的应用.

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8、

METHODS Cilnidipine was synthesized from cinnamyl alcohol by esterification, feminization and condensation-cyclization.

方法以肉桂醇为原料,经酯化 、 氨化和缩合 - 环合而得.

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9、

Menthol was obtained from lemon eucalyptus oil via cyclization and catalytic hydrogenation.

以柠檬桉叶油为主要原料经环化、催化氢化二步反应得到薄荷醇.

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10、

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation, hydrogenation, cyclization with an overall yield of 8.05 %.

以苯甲酰氯为原料,经酰化, 还原, 环合等反应合成左旋西替利嗪盐酸盐,反应总收率为8.05%.

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11、

Cyclization occurs readily with dilute alkali.

遇到稀碱就容易环化.

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12、

The advances in syntheses of AEMs, including different cyclization methods, solid-phase synthesis, template synthesis and aggregation driven cyclization are summarized.

评述了采用母板复型法合成金属有序纳米孔道阵列模板合成方法、金属模板的特点及应用的研究进展。

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13、

Studies on the Transition Metal Catalyzed Cyclization and Addition Reaction of Acetylenes

过渡金属催化炔烃的环化及加成反应研究

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14、

Calculation of the Degree of Cyclization and the Incorporated Solvent Content of Cyclized CR by~ 1H-NMR

利用~1H-NMR计算环化氯丁橡胶的环化度和溶剂参与量

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15、

Influences of Intramolecular Cyclization on PVA Crosslinked System PREPARATION OF CYCLIZED POLYISOPRENE

分子内环化对聚乙烯醇交联体系的影响环化聚异戊二烯的制备

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16、

Improvement on the Technology of Cyclization Process of TMP

合成磺胺增效剂(TMP)的环合工艺改进研究

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17、

The on-line NMR monitoring, control experiments and the X-ray structure of intermediate disclosed that the reaction may undergo Cu ( I)/ Cu ( II) catalytic cyclization process.

通过核磁监测、控制实验以及中间体单晶结构等证实了反应可能经历了Cu(Ⅰ)/Cu(Ⅱ)的催化过程。

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