On the use of removable steric buttresses in cycloaddition reactions

On the use of removable steric buttresses in cycloaddition reactions
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DOI:
10.1039/a802415d
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发表时间:
1998-07-07
期刊:
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
影响因子:
--
通讯作者:
Sammes, PG
Sammes, PG
中科院分区:
其他
文献类型:
--
作者:
Choony, N;Dadabhoy, A;Sammes, PG

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大体积保护基如三苯甲基的使用可用于促进否则不会进行的环加成反应。因此,带有适当的N-保护基的N-烯丙基糠基胺可以热环化;随后除去保护基产生化学上不稳定的游离胺。
Use of bulky protecting groups, such as the trityl group, can be utilised to encourage cycloaddition reactions that otherwise do not proceed. Thus N-allylfurfurylamines, bearing the appropriate N-protecting group, can thermally cyclise; subsequent removal of the protecting group produces the thermodynamically unstable, free amine.