On the alpha,alpha;alpha 'alpha '-bis-[tetramethyle]-adipic acid. A case of ring narrowing by oxidation.

[1] Hill J. W., 1933, J AM CHEM SOC, V55, P5023, DOI [10.1021/ja01339a054, DOI 10.1021/JA01339A054]

[2] Studies on polymerization and ring formation VI Adipic anhydride [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1930, 52 : 4110 - 4114

[3] SHEPARD, 1930, J AM CHEM SOC, V52, P2087

[1] Hill J. W., 1933, J AM CHEM SOC, V55, P5023, DOI [10.1021/ja01339a054, DOI 10.1021/JA01339A054]

[2] Studies on polymerization and ring formation VI Adipic anhydride [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1930, 52 : 4110 - 4114

[3] SHEPARD, 1930, J AM CHEM SOC, V52, P2087