References
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- Garst , M. E. , Roberts , V. A. , Houk , K. N. and Rondon , N. G. 1984 . J. Am. Chem. Soc. , 106 : 3882 A detailed regiochemical study of the [6π + 4π] cycloaddition of substituted tropones has appeared:
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- Garst , M. E. and Roberts , V. A. 1982 . J. Org. Chem. , 47 : 2188 The methodology of Garst and Roberts was used to prepare both 3- and 4- ethoxycarbonyl tropone.
- Davies , H. W. L. and Clark , T. J. 1994 . Tetrahedron , 50 : 9883 For methods to prepare highly substituted tropones and tropolones, consult:
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