Photoinduced intramolecular substitution-III photocyclization of ω-anilinoalkyl m-nitrophenyl ethers
作者:Klyoshi Mutai、Keiji Kobayashi、Kenji Yokoyama
DOI:10.1016/s0040-4020(01)91127-5
日期:1984.1
1-(2-methoxy-5-nitrophenoxy) analogs inducedintramolecular cyclization in which a hydrogen or methoxyl group at the para position with respect to the nitro group is replaced. Although the replacement of the meta Ar-O bond attached to the polymethylene chain was expected by the analogy with intermolecular photosubstitution, no such product was detected. Several reaction features and laser flash study suggests
PHOTOCYCLIZATION IN 3-[ω-(ANILINO) ALKOXY] NITROBENZENES
作者:Kiyoshi Mutai、Sei-ichiro Kanno、Keiji Kobayashi
DOI:10.1246/cl.1978.931
日期:1978.9.5
Irradiation of solutions of 3-[ω-(anilino) alkoxy]nitrobenzenes, 3 (n=2 and 3), with 313 nm light gave cyclized products, 5, and 6. No intramolecular substitution at the meta C–O bond was observed. The methylamino analogs, 4, showed only degradation under the same conditions.