Brown, Roger F. C.; Gardner, D. V.; McOmie, John F. W.; Solly, R. K. published the artcile< Pyrolysis of polycarbonyl compounds. II. Synthesis of biphenylenes from phthalic anhydrides and other carbonyl compounds>, Recommanded Product: 5-Chloroisobenzofuran-1,3-dione, the main research area is BIPHENYLENE PYROLYSES PHTHALIC ANHYDRIDES; PHTHALIC ANHYDRIDES PYROLYSES BIPHENYLENE.
Pyrolysis of phthalic anhydride or o-sulfobenzoic anhydride at 700-1100°/0.1-10 mm. produces benzyne, as shown by the formation of biphenylene (I) and triphenylene. Biphenylene and several polychloro and polymethyl derivatives were conveniently synthesized by pyrolysis of the corresponding phthalic anhydrides in 3-26% yields. These reactions afford further examples of the parallel between the pyrolytic and mass spectral fragmentations of certain aromatic carbonyl compounds The yield of biphenylene obtained by pyrolysis of compounds structurally related to phthalic anhydride can be correlated with the instability of the corresponding mol. ions in the mass spectrometer.
Australian Journal of Chemistry published new progress about Carbonyl compounds (organic) Role: RCT (Reactant), RACT (Reactant or Reagent). 118-45-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H3ClO3, Recommanded Product: 5-Chloroisobenzofuran-1,3-dione.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics