engleski

Synthesis of novel tricyclononanes

Hitherto unknown tricyclo[4.2.1.0(3, 8)]nonan-5-one (2) was prepared by reductive cleavage of tetracyclo[3.3.1.0(2, 8).0(3, 7)]nonan-9-one (1) with lithium in liquid ammonia or reducting 1 via photochemically induced electron transfer. Tricyclic ketone 2 served as precursor for the synthesis of two novel hydrocarbons, i. e. tricyclo[4.2.1.0(3, 8)]nonane (3) and tricyclo[4.2.1.0(3, 8)]non-4-ene (5).

cyclopropyl ketones; electron transfer; tricyclononane; tricyclononene

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