... We thank Prof. K. Tomooka (Kyushu University) for use of a NMR spectrometer and Profs. H. Suzuki, T. Takao, T. Ikariya, and S. Kuwata (Tokyo ... More from SciFinder ®. http://chemport.cas. org/services/resolver?origin=ACS&resolution=options&coi=1%3ACAS%3A528 ...