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Lisa-骆启香

新虫 (小有名气)

[求助] 希望能够帮忙翻译这一句话,万分感谢

Condensations of aldehydes with chiral allenylboronic esters provide  -alkynic alcohols with an exceptionally high degree of enantioselectivity (eq 2). The reagents prepared using bulky tartrate esters like 2,4-dimethyl-3-pentyl as the chiral auxiliary are more enantioselective than reagents prepared from ethyl or isopropyl esters of tartaric acid.

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baoshanqiu

至尊木虫 (著名写手)

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Lisa-骆启香(fjtony163代发): 金币+15, 代发 2016-03-16 16:37:52
fjtony163: 翻译EPI+1, 代发 2016-03-16 16:37:58
用手性丙二烯酯的醛缩反应以超高的对映选择性提供炔醇(式2)。用大量诸如2,4-二甲基-3-戊烷基为手性辅助物的酒石酸酯制备的试剂比用乙基或异丙醇基的酒石酸酯者具有更高的对映选择性。
2楼2015-11-13 23:36:20
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