A reaction of p-menth-1 (2)-en-3-ol with palladium(II) chloride, lithium chloride, and carbon monoxide which was worked up as soon as the passage of gas had ceased gave di-µ-chloro-bis-[(1,2,3-trihapto-p-menth-1-ene)palladium(II)](2). When the mixture was set aside for several days di-µ-chloro-bis-[(3,4,8-trihapto-p-menth-3-ene)palladium(II)](3) was isolated. The preparation of (3) from other cyclic monoterpene derivatives is described.