Synthesis of star compound of alpha,beta,gamma,delta-tetrakis-{4-[3-(9-(4-(3-(9-(4-(5,5-diacyloxamethyl-1,3-dioxan-2-yl)))phenyl-2,4,8,10-tetraoxaspiro-[5.5]undecyl)))phenyl-2,4,8,10-tetraoxaspiro-[5.5]undecyl]}phenyl porphyrins
Wei, RB; Wei, RB; Ni, X; Ni, X; Liang, Y; Liang, Y
The intermediates of 3-[4-(2,2-dicyano)vinyl]phenyl-9-(4-formyl)phenyl-2,4,8,10-tetraoxaspiro-[5.5]undecane (3) and alpha,beta,gamma,delta-tetrakis-(4-formylphenyl)porphyrin (4) were prepared using terephthalaldehyde, malononitrile, pentaerythritol, tetrachlorobenzoquinone and pyrrole as starting materials. The compound of alpha,beta,gamma,delta-tetrakis-[4-(5,5-dihydroxymethyl-1,3-dioxan-2-yl]phenyl porphyrin (5) was obtained by a reaction of compound 4 with excessive pentaerythritol. When the products 5 and 3 were treated by 10% NaOH and excessive pentaerythritol, the compound 6 was produced. The three spiro star of alpha,beta,gamma,delta-tetrakis-{4-[3-(9-(4-(3-(9-(4-(5,5-diacyloxametliyl-1,3-dioxan-2-yl)))phenyl-2,4,8,10-tetraoxaspiro[5.5]- undecyl)))phenyl-2,4,8,10-tetraoxaspiro[5.5]undecyl]}phenyl porphyrins were synthsized through 6 individually reacting with acetic anhydride, propionic anhydride, benzoyl chloride. The products and intermediates were characterized by IR, H-1 NMR, MS spectra and elemental analysis. The effect of vairous parameters were discussed.<