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Abstract 1H‐Cyclopropa[a]naphthalene (1a) is accessible via reduction of the dichloro compound 1c with LiAlH4/AlCl3. Several derivatives of tetrahydrocyclopropa[a]naphthalene were synthesized. However, contrary to their 1,1‐dihalogeno analogues, they afforded no cycloproparenes upon attempted aromatization.
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Müller et al. (1989) studied this question.
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