Synthesis of Spiro Compounds through Tandem Oxidative Coupling and a Framework Rearrangement Reaction
摘要:
A highly efficient oxidative coupling of 2-naphthols and a rearrangement tandem reaction to afford unique spiro compounds in the presence of FeCl3 center dot 6H(2)O In up to 88% yield have been developed.
Highly selective oxidative cross-coupling of differently substituted 2-naphthols mediated by Cu(II)-tert-butyl amine complexes is described. The “cross”-products are obtained in good to excellent yields and the selectivity up to ⪢90% is observed depending on the substitution of naphthol nuclei. The alternative procedures - the cross-coupling of free naphthols with CuCl(OMe) as well as the coupling
A highly efficient oxidative coupling of 2-naphthols and a rearrangement tandem reaction to afford unique spiro compounds in the presence of FeCl3 center dot 6H(2)O In up to 88% yield have been developed.