Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (2): 0-0.
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SHI Lanxiang(),ZHANG Baohua
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Abstract:
2,3-Dihydro-1,4-benzodioxins were prepared through a tandem reaction of epoxides and o-iodophenols catalyzed by CuBr/1,4,7-trisubstituted-1,4,7-triazonane with K2CO3 as the base at 110 ℃. All aryl and aliphatic epoxides reacted with o-iodophenols smoothly with yields of 64%~83%. The relationship between yields and substituent groups was described and the possible mechanism was discussed. The compounds were confirmed by NMR and element analysis.
Key words: dihydro-benzodioxin, o-iodophenol, epoxide, triazonane derivative
SHI Lanxiang, ZHANG Baohua. Cu(Ⅰ)-Catalyzed Synthesis of 2,3-Dihydro-1,4-Benzodioxins[J]. Chinese Journal of Applied Chemistry, 2016, 33(2): 0-0.
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