Sodium hydride → 5-Methyl-5,6,7,8,9,10,11,12-Octahydro-5,11-Methano-Benzocyclodecen-13One

Participants

Reaction Steps

Using a procedure analogous to that described in Example X for the preparation of 6,7,8,9,10,11-hexahydro-3-methoxy-5-methyl-5,10-methano-5H-benzocyclononen-12-one there is prepared from 1-methyl-1-(5-bromopentyl)-2-tetralone (19.8 g., 0.0675 mole) and sodium hydride (3.57 g., 0.081 mole, of a 54.5% dispersion in mineral oil) in dimethylformamide (250 ml.); 6.2 g. (40.4%) of the title product, b.p. 126° to 135° C. (0.3 mm.).

Provenance & Evidence