7743-16-0

Upstream product

• 527-55-9 4,5-dimethylresorcinol 
• 75-36-5 acetyl chloride 
• 35236-36-3 1,5-diacetoxy-2,3-dimethylbenzene 
• 116855-28-8 2-Acetyl-3,6-dihydroxy-5,6-dimethyl-cyclohexa-2,4-dienone 
• 116855-26-6 2-acetyl-4,5-dihydroxy-4,5-dimethylcyclohexane-1,3-dione 
• 101386-03-2 2-acetyl-2-chloro-5,5-dimethyl-1,3-cyclohexanedione 

Relevant academic research and scientific papers

REARRANGEMENT OF 2-ACYL-2-CHLORO-1,3-CYCLOHEXANEDIONES INTO 2-ACYLRESORCINOLS AND 2-ACYL-4-CHLORO-1,3-CYCLOHEXANEDIONES

2-Acetylresorcinol was prepared in 80-88percent yield from 2-acetyl-1,3-cyclohexanedione by 2-chlorination (excess of NCS in boiling carbon tetrachloride or one equivalent of molecular chlorine in the cold solvent) followed by aromatization in a heated dry solution of hydrogen chloride in dimethylformamide.The scope of the method was extended to the preparation of 2-propionyl- and 2-isobutyrylresorcinol (resp. 79percent and 66percent yield).Application of the method on 2-acryl-5,5-dimethyl-1,3-cyclohexanediones (acyl=acetyl, propionyl, n-butyryl, i-butyryl) affrded the corresponding 2-acyl-4-chlorodimedone derivatives in 40-77percent yields.

New cyclohexane- and cyclohexene-1,3-diones from tetraacetylethylene

The new substituted cyclohexane- and cyclohexene-1,3-diones 3-6 and 9, 10, respectively, have been synthesized from tetraacetylethylene 1, through a ring expansion of the cyclopentenone 2.The structures of these products, as well as some features of their