24小时热门版块排行榜    

查看: 422  |  回复: 2
本帖产生 1 个 翻译EPI ,点击这里进行查看
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

hmily601

木虫 (正式写手)

[求助] 帮忙译下。 (有机化学专业)

Aromatic groups lacking an electron-donating substituent worked less well with a similar trend regarding ortho substitution (32d, 32j).Electron-poor aromatic rings were introduced in generally poorer yields (32g, 32h,32o). A similar reactivity range was observed for heterocycles;i.e., an electron-rich indole ring was added in high yield (32k),whereas electron-poor pyridylboronic acids were unreactive(32m, 32n). Copper-mediated direct functionalization of hetero-cycles with amides and the cross-coupling of bromides using the protocols of Wang and Schreiber (46) and Borthwick et al. (47),respectively, were unsuccessful.
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

jwdxbjzh

至尊木虫 (职业作家)

【答案】应助回帖

hmily601(金币+15, 翻译EPI+1): 学习了!!谢谢哈! 2011-05-25 13:52:58
在最后一句改为:分别考察了在.......交叉偶联反应,但都不成功。
jwd
3楼2011-05-25 07:57:54
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 3 个回答

jwdxbjzh

至尊木虫 (职业作家)

【答案】应助回帖

★
sltmac(金币+1): 谢谢交流,欢迎常来~~ 2011-05-25 08:55:05
无供电子取代基的芳基不能表现出邻位取代芳基相似的趋势(32d, 32j)。贫电子芳环通常获得较差的收率(32g, 32h, 32o)。 对于杂化化合物而言,相似的反应范围被观察到。即,富电子吲哚环引入后获得了高的收率(32k),而贫电子的吡啶硼酸却几乎不反应(32m, 32n)。分别在铜催化下胺对杂环化合物的直接功能化以及用Wang、Schreiber (46) 和Borthwick等 (47)的方法对溴化物的交叉偶联,但都不成功。
jwd
2楼2011-05-25 07:39:14
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考博] 售SCI一区文章,我:8.O.551.O.5.4,科目全,可伽急 +3 TZqyNTBa07NP 2026-11-13 3/150 2026-11-14 15:58 by KXypaGgBBlw7
[论文投稿] 售一区SCI文章T0P,我:8O.551.O54,科目全,可十急 +3 uKOSCocCb6Fm 2026-11-12 9/450 2026-11-14 08:04 by dHydBGAkDh6v
[公派出国] 售SCI一区T0P文章,我:8.O55.1.O.54,科目全,可十急 +3 TgvkbZZl9tqB 2026-11-11 4/200 2026-11-12 12:51 by ECLTXnJnRSXf
[基金申请] 售SCI一区T0P文章,我:8.O55.1.O.54,科目全,可十急 +4 Z7qfCsdIiD1T 2026-11-11 5/250 2026-11-12 11:44 by HajghKOMynmz
[教师之家] 售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急 +4 Z7qfCsdIiD1T 2026-11-10 7/350 2026-11-12 11:22 by HajghKOMynmz
[硕博家园] 售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急 +5 Z7qfCsdIiD1T 2026-11-10 8/400 2026-11-12 11:20 by HajghKOMynmz
[公派出国] 售SCI一区文章,我:8.O.551.O.5.4,科目全,可伽急 +3 czAiolzR0IJC 2026-11-10 8/400 2026-11-12 11:11 by HajghKOMynmz
[教师之家] 售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急 +5 czAiolzR0IJC 2026-11-10 7/350 2026-11-12 11:09 by HajghKOMynmz
[基金申请] 售SCI一区文章,我:8.O.551.O.5.4,科目全,可伽急 +5 G2rhSvqvhNzl 2026-11-10 7/350 2026-11-12 10:49 by HajghKOMynmz
[硕博家园] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +4 G2rhSvqvhNzl 2026-11-10 6/300 2026-11-12 10:49 by HajghKOMynmz
[考博] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +6 YHiw1gou1Eda 2026-11-10 6/300 2026-11-12 10:08 by HajghKOMynmz
[考研] 售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急 +6 FChKX8meu1ds 2026-11-09 8/400 2026-11-12 09:41 by HajghKOMynmz
[考研] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +7 0TEMgxdT1eIw 2026-11-09 9/450 2026-11-12 09:24 by HajghKOMynmz
[基金申请] 售SCI一区文章,我:8.O.551.O.5.4,科目全,可伽急 +3 TgvkbZZl9tqB 2026-11-11 5/250 2026-11-12 08:15 by HajghKOMynmz
[公派出国] 售SCI一区T0P文章,我:8.O55.1.O.54,科目全,可十急 +4 Z7qfCsdIiD1T 2026-11-10 6/300 2026-11-12 07:09 by 9fOTqj074tIg
[考研] 售SCI一区T0P文章,我:8.O.55.1.O.54,科目齐全,可+急 +5 czAiolzR0IJC 2026-11-10 5/250 2026-11-12 06:25 by 9fOTqj074tIg
[硕博家园] 售SCI一区文章,我:8.O.551.O.5.4,科目全,可伽急 +4 YHiw1gou1Eda 2026-11-10 7/350 2026-11-12 05:39 by 9fOTqj074tIg
[教师之家] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +5 FChKX8meu1ds 2026-11-09 10/500 2026-11-12 05:19 by 9fOTqj074tIg
[教师之家] 售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急 +4 FChKX8meu1ds 2026-11-09 7/350 2026-11-12 05:19 by 9fOTqj074tIg
[考研] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +5 cqv1zKnzd7hr 2026-11-09 8/400 2026-11-12 05:08 by 9fOTqj074tIg
信息提示
请填处理意见