References
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- The spectral data reported for the “methyl 2,2-dimethyl-cyclobutanecarboxylate” and the free acid prepared thereof1) suggest that these compounds are in fact 3a and the corresponding acid
- Albisetti , C. J. , Fisher , N. G. , Hogsed , M. J. and Joyce , R. M. 1956 . J. Amer. Chem. Soc. , 78 : 2637 Uncatalyzed ene reactions with methyl acrylate require temperatures of 200–300°:
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