Photochemical Approach to Naphthoxazoles and Fused Heterobenzoxazoles from 5-(Phenyl/heteroarylethenyl)oxazoles

被引:32
作者
Sagud, Ivana [1 ]
Faraguna, Fabio [1 ]
Marinic, Zeljko [2 ]
Sindler-Kulyk, Marija [1 ]
机构
[1] Univ Zagreb, Dept Organ Chem, Fac Chem Engn & Technol, Zagreb 10000, Croatia
[2] Rudjer Boskovic Inst, NMR Ctr, Zagreb 10000, Croatia
关键词
ALPHA; BETA-UNSATURATED ALDEHYDES; FURAN-DERIVATIVES; O-DIVINYLBENZENES; INHIBITORS; OXAZOLE; RING;
D O I
10.1021/jo1025942
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A new synthetic approach is presented for the synthesis of naphthoxazoles and fused heterobenzoxazoles. The starting 5-(aryl/furyl/thienyl/pyridyl ethenyl)oxazoles are prepared from the corresponding alpha,beta-unsaturated aldehydes using Van Leusen reagent in very good yields and are transformed into naphthoxazoles and fused heterobenzoxazoles on irradiation under aerobic conditions and in the presence of iodine.
引用
收藏
页码:2904 / 2908
页数:5
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