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Environmentally benign tin-free radical cyclization reactions allow the preparation of cyclic alcohol derivatives. The isomerizations are very easy to conduct and proceed in high yields for alkoxyamines with weak C−O bonds Eq. (1); R=Ph, functionalized aryl, heteroaryl, ester, or nitrile group. As a first application of the new method, the preparation of a complex tetracycle is presented.
Armido Studer (Fri,) studied this question.