alkyl transfer的例句大全

with different side chains at the 3-position of the phthalide, either hydride transfer or alkyl transfer would take place in the rearrangement reaction depending upon the stability of resulting carbonium species, leading to different products.

研究了3-位不同烷基取代的苯酞类化合物在三氯化铝作用下的重排反应。在重排过程中，既有氢迁移，也会有烷基迁移，这取决于形成的碳正离子的稳定性。

Excellent selectivity in alkyl transfer was noted in the sequence of PhCH 2 > primary alkyl > secondary alkyl.

季铵盐中烷基的转移具有较好的选择性,其优先顺序为:苄基>伯烷基>仲烷基.

excellent selectivity in alkyl transfer was noted in the sequence of phch 2 > primary alkyl > secondary alkyl.

季铵盐中烷基的转移具有较好的选择性,其优先顺序为:苄基>伯烷基>仲烷基.

seven monoalkyl ethers of ethylene glycol were synthesised, which was obtained by the phase transfer catalyzed williamson ether reaction of alkyl halide and ethylene glycol and acquired high yield of pure monoethers.

以乙二醇和卤代烷为原料，用相转移催化法合成了7种乙二醇单烷基醚，均获得较高产率。

The formed long and linear chain alkyl benzene changes into benzene methyl and alkene through β-scission and monomolecular homolysis, and then benzene methyl shifts to the position of α-Carbon in the long chain alkyl benzene through H-transfers.

已形成的长直链烷基苯通过β分裂、单分子均裂形成苯甲基、烯烃，苯甲基通过氢转移到长链烷基苯的α碳上，烯烃再与α碳结合形成带支链的烷基苯。

By introducing electron withdrawing cyano-acetic acid groups, the absorption of alkyl substituted quinacridone has significantly red shifted which indicates the feasibility of obtaining narrow band gap material by enhancing intermolecular charge transfer transition effect.

通过引入吸电子氰基-乙酸基团，烷基取代喹吖啶酮的吸收光谱产生了明显的红移，这表明通过提高分子间电荷转移来获得窄带隙材料的可行性。

The other is the process in which the monomer containing "reactive group" is grafted at the end of polyolefine molecular chain, acting as a chain transfer agent, such as borane, para-methyl styrene, silane and alkyl zinc etc.

二是含反应性基团的单体接入聚烯烃分子链末端起链转移剂作用，这类链转移剂有硼烷、p-MS、硅烷和烷基锌等。

Studies of Phase Transfer Catalysis for N-Alkylation of 2-Methylindole

相转移催化2－甲基吲哚的N－烷基化反应

synthesis of s alkyl isothiourea under phase transfer catalysis

相转移催化合成S－烃基异硫脲盐

Alcohols, after in situ derivatization to the corresponding alkyl xanthates under phase-transfer catalysis, were determined in aqueous solution by differential-pulse polarogra-phy.

通过相转移催化反应使样品中的醇就地衍生为黄原酸盐，然后用微分脉冲极谱测定。

Photoinduced electron transfer reactions between alkyl diamines and ZnO, TiO2 dispersions in heptane or benzene solution were studied with the combination of ESR spectroscopy and spin trapping technique.

用自旋捕捉技术与ESR相结合的方法研究了脂二胺在ZnO、TiO2的庚烷或苯的分散体系中光诱导的电子转移过程。

kinetics of phase transfer catalyzed reaction of alkyl halide with solid carboxylate

PTC条件下固体羧酸盐与卤代烃反应的动力学