24小时热门版块排行榜

返回列表

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

qyl541886

铁虫 (小有名气)

应助: 0 (幼儿园)
金币: 110.6
帖子: 96
在线: 12.2小时
虫号: 559616

[交流] 有机合成英语帮忙翻译其中两句

This methodology is mild and efficient and is compatible with several functional groups other than the alcohol.Substrates with methoxy-substituted aromatic rings are subjected to the TEMPO/TCCA oxidation, but surprisingly the reaction affords only the corresponding aldehydes (Table 1, entries 7 and 8). Unexpectedly, this
procedure failed in the oxidations of unsaturated alcoholsas well. Contrary to what was observed carrying out the oxidation in the absence of water, the treatment of
unsaturated alcohols with 2 equiv of trichloroisocyanuricacid and catalytic TEMPO, under the present conditions,proceeded to the corresponding carboxylic acid and to the contemporary addition to the double bond. The oxidation of trans-cinnamic alcohol furnished in fact (2RS,3SR)-2,3-dichloropropionic acid. The amount of chlorinationreaction is diminished operating with equimolar amounts
of TCCA, but in this case the rate of the reaction is very
reduced. To determine if this behavior was general for
the double bond, we carried out the reaction with (E)-
1,1-diethoxy-3-phenyl-2-propene under the same condi-
tions. After complete conversion of the alkene, (2RS,3SR)-
1,1-diethoxy-2,3-dichloro-3-phenylpropane was obtained
quantitatively.

回复此楼

» 猜你喜欢

» 抢金币啦！回帖就可以得到:

查看全部散金贴

1楼 2011-02-11 22:04:55

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

爱与雨下

荣誉版主 (职业作家)

qyl541886(金币+1, 翻译EPI+1): 2011-02-14 22:02:45

引用回帖:

Originally posted by qyl541886 at 2011-02-11 22:06:51:
carrying out the oxidation in the absence of water 是observed 还是不是，?
present conditions是“现在的条件”么？

是
present conditions是指文献中的现有的条件