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Recipes for excess

机译:多余的食谱

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摘要

The selective production of a particular mirror-image form of a molecule is immensely important to organic synthesis. But techniques to find the right catalysts have traditionally been protracted and fiddly. Help is at hand. Chiral molecules are molecules that come in two non-superimposable mirror-image forms, known as enantiomers. Synthesizing one enantiomer of a chiral molecule in preference to the other is difficult but crucial: among other things, single-enantiomer drugs account for some 40% of worldwide drug sales, worth more than US$100 billion. In recognition of this, the 2001 Nobel Prize in Chemistry was awarded for the development of chiral catalysts for 'enantioselective' synthesis. A notable advance since then has been the recognition that the often neglected, more symmetrical 'achiral' components of a chiral catalyst can be used to improve enantioselectivity further. Recent work that focuses on transformations involving rhodium phosphite and phosphoramidite catalysts is illustrative of this approach.
机译:分子的特定镜像形式的选择性产生对于有机合成极为重要。但是,传统上寻找合适催化剂的技术是漫长而缓慢的。帮助随时可用。手性分子是以两种不可重叠的镜像形式出现的分子,称为对映异构体。优先合成手性分子的一种对映异构体是困难的,但至关重要:除其他外,单一对映异构体药物约占全球药物销售额的40%,价值超过1000亿美元。认识到这一点,2001年诺贝尔化学奖被授予用于“对映选择性”合成的手性催化剂的开发。从那时起,一个显着的进步是人们认识到,手性催化剂中通常被忽略的,更对称的“非手性”组分可用于进一步提高对映选择性。最近的工作集中于涉及亚磷酸铑和亚磷酰胺催化剂的转化,这是这种方法的例证。

著录项

  • 来源
    《Nature》 |2005年第7058期|p.487-488|共2页
  • 作者

    John Hartwig;

  • 作者单位

    Department of Chemistry, Yale University, PO Box 208107, New Haven, Connecticut 06520-8107, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
  • 关键词

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