Tetrahedron Letters p. 895 - 898 (1990)
Update date:2022-09-26
Topics:
Shono, Tatsuya
Naekawa, Hirofumi
Nozoe, Tetsuo
Kashimura, Shigenori
The preparation of 4-alkyl (or aryl) tropones has easily been accomplished by the anodic oxidation of 1-methoxy-4-alkyl (or aryl) cycloheptatrienes which where synthesized by the regioselective addition of alkyl or aryl lithium to 3-position of 7,7-dimethoxycycloheptatriene followed by the thermal 1,5-hydrogen shift of the resulting 3-methoxy-7-alkyl (or aryl) cycloheptatrienes.
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