| 查看: 455 | 回复: 1 | ||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
[求助]
求大神翻译两小段外文文献，万分感谢
|
||
|
A convenient procedure to effect the Wittig and Horner–Wadsworth–Emmons reactions employing guanidine TBD and MTBD as base promoters was developed.Mild reaction conditions highly efficiently facilitated isolation of the final products(Figure1.5) [38].Further developments of theWittig reactionhave beenreported [39, 40]. A proposed mechanism of Heck reaction and other reactions using palladium compounds as catalysts and running via surface transient organometallic (STO) intermediates is presented in Figure 1.7. The formation of only one STO intermediate in all the Heck-, Suzuki-, Sonogashira-, and Stille-type coupling reactions during their reaction sequences was stressed. 万分感谢！ |
回复此楼» 猜你喜欢
写了一篇“相变储能技术在冷库中应用”的论文，论文内容以实验为主，投什么期刊合适？
已经有4人回复
-
需要合成515-64-0，50g，能接单的留言
已经有3人回复
-
最近几年招的学生写论文不引自己组发的文章
已经有10人回复
-
中科院杭州医学所招收博士生一名（生物分析化学、药物递送）
已经有3人回复
-
临港实验室与上科大联培博士招生1名
已经有8人回复
-
26申博自荐
已经有7人回复
-
想换工作。大多数高校都是 评职称时 认可5年内在原单位取得的成果吗？
已经有4人回复
-
带资进组求博导收留
已经有9人回复
818james
铜虫 (著名写手)
- 翻译EPI: 140
- 应助: 59 (初中生)
- 金币: 7611.1
- 红花: 17
- 帖子: 1455
- 在线: 878.1小时
- 虫号: 3719023
- 注册: 2015-03-08
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
火上飘: 金币+45, 翻译EPI+1, ★★★★★最佳答案, 非常感谢！ 2016-05-01 13:43:59
火上飘: 金币+45, 翻译EPI+1, ★★★★★最佳答案, 非常感谢！ 2016-05-01 13:43:59
|
A convenient procedure to effect the Wittig and Horner–Wadsworth–Emmons reactions employing guanidine TBD and MTBD as base promoters was developed.Mild reaction conditions highly efficiently facilitated isolation of the final products(Figure1.5) [38].Further developments of theWittig reactionhave beenreported [39, 40]. A proposed mechanism of Heck reaction and other reactions using palladium compounds as catalysts and running via surface transient organometallic (STO) intermediates is presented in Figure 1.7. The formation of only one STO intermediate in all the Heck-, Suzuki-, Sonogashira-, and Stille-type coupling reactions during their reaction sequences was stressed. 有人提出了一种简便的，利用胍TBD和MTBD作为碱推动剂来促进Wittig和Horner–Wadsworth–Emmons 反应的方法。 温和的反应条件非常有利于终产物的分离（图1. 5）。还有人提出了对Witting 反应的更进一步的改进（方法）[39, 40]。 图1.7 介绍了一种 针对Heck反应和其它反应提出的机理，这些反应都采用钯化合物作为催化剂，中途有表面瞬间有机金属(STO)中间产物形成。特别强调指出的是在这些反应历程的所有Heck-, Suzuki-, Sonogashira-, 和 Stille-类 偶联反应中，只有一种STO中间产物形成。 |
2楼2016-05-01 12:45:25