Naotake Kaneta

Reaction of metal free Bu3Sn− generated from Bu3SnSiMe3-R4NX with an aryl or vinyl halide

Metal free stannyl anion generated from Bu3SnSiMe3 and R4NX in DMF reacted with an aryl or vinyl halide to produce the aryl or vinyl anion via so-called halogen-metal exchange process, which reacted with internal carbonyl group to afford cyclized product in good yield.

Utilization of Me3SiSnBu3 in organic synthesis. I: Generation of a stannyl anion from Me3SiSnBu3 and R4NX

Abstract A metal free stannyl anion generated from Me 3 SiSnBu 3 and R 4NX in DMF reacted with an aryl halide bearing carbonyl group to produce an aryl anion via the so-called halogen-metal exchange process, which reacted with a carbonyl group to afford a cyclized product in good yield.

Electronic interaction of tricarbonylchromium-complexed benzene with a facing aryl ring in the 1,8-diarylnaphthalene system

Abstract A series of 1,8-diarylnaphthalenes with the face-to-face aryl group(s) coordinated to tricarbonylchromium have been synthesized. Examination of X-ray crystal structures, charge-transfer absorption bands, and CO stretching vibrations has indicated marked π-donor ability for the tricarbonyl(arene)chromium moiety.

Utilization of Bu3SnSiMe3 in organic synthesis: II. New cyclization by a stannyl anion generated from Bu3SnSiMe3 and R4NX

Abstract A new cyclization reaction of an aryl or vinyl halide bearing a carbonyl group such as ketone or ester has been developed by use of a stannyl anion generated in DMF from Bu3,SnSiMe3 and Bu4NCl.