A new synthetic approach to novel spiro-β-lactams

A new synthetic approach to novel spiro-β-lactams
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DOI:
10.1002/ejoc.200600458
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发表时间:
2006-10-27
影响因子:
2.8
通讯作者:
Bari, Sharnsher S.
Bari, Sharnsher S.
中科院分区:
化学3区
文献类型:
--
作者:
Bhalla, Aman;Venugopalan, Paloth;Bari, Sharnsher S.

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描述了一种操作简单且有效的合成新型螺-β-内酰胺的方法。关键反应是通过反式-3-苄硫基-3-氯-β-内酰胺碳阳离子等价物的刘易斯酸介导的C-3-烷基化获得的顺式-3-苄硫基-3-(丙-2-炔氧基/-烯氧基)-β-内酰胺的卤素介导的磺基内环化。((c)Wiley-VCH Verlag GmbH & Co. KGaA,69451魏因海姆,德国,2006)。
An operationally simple and efficient approach for the synthesis of novel spiro-beta-lactams is described. The key reaction is a halogen-mediated intrasulfenyl cyclization of a cis-3-benzylthio-3-(prop-2-ynyloxy/-enyloxy)-beta-lactam procured through a Lewis acid-mediated C-3-alkylation of the trans-3-benzylthio-3-chloro-beta-lactam carbocation equivalent. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006).