Wang Wei-don
2014
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
A novel compound,exo-1,6-dihydroxy-4,9-dimethyl-3,8-dioxatricyclo[5.3.0.02.6]deca-5,10-dione(2),was synthesized by solid-state[2 + 2]photocycloaddition reaction of 4-hydroxy-2,5-dimethyl-3(2H) furanone with high stereoselectivity.The structure was characterized by1H NMR,IR,MS,elemental analysis and X-ray single crystal diffraction.2 belongs to triclinic,space group Pī(#2) with a = 6.715(3) ,b =8.005(5) ,c =5.910(3) ,α =102.88(4) °,β =101.26(3) °,γ =77.217(9) °,V =298.4(3) 3,Mr =256.25,Dc =1.426 g · cm- 3,F(000) =136,μ = 1.15 cm- 1,Z =1,R1= 0.081,wR2= 0.117.2 was an anti-head-to-tail-exo-[2 + 2]adduct.