W. Dolling et Hm. Siebel, REACTIONS OF (+ -)-BICYCLO[2.2.1]HEPTAN-2 -ONE ((+/-)-NORCAMPHOR) AND8-OXATRICYCLO[5.2.1.0(2.6)]DECANE WITH CARBON-DISULFIDE/, Phosphorus, sulfur and silicon and the related elements, 116, 1996, pp. 175-184
The (+/-)-Bicyclo[2.2.1]heptan-2-one ((+/-)-Norcamphor) 1 and 8-Oxatri
cyclo[5.2.1.0(2,6)]decane 3 react with carbon disulfide, strong base a
nd an alkylating agent in dipolar aprotic solvents giving racemic mixt
ures of 3- or 9-dialkylthiomethylene compounds 2a-e or 4a-d, respectiv
ely.