Reversible aryl migrations in metallated ureas: controlled inversion of configuration at a quaternary carbon atom.
نویسندگان
چکیده
Deprotonation with strong bases of N-vinyl ureas carrying an N'-aryl substituent leads to migration of the N'-aryl group from N to C via an allyllithium; with weaker bases and electron-deficient aryl rings the direction of the migration reverses, and aryl substituents α to the urea N atom may migrate from C to N.
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ورودعنوان ژورنال:
- Chemical communications
دوره 49 15 شماره
صفحات -
تاریخ انتشار 2013