“…Of particular relevance are reports in the early literature, by Forster (12) and Burgess (13), respectively, which claim that treatment of "P-bromocamphor" (16) (1 2) and "a, P-dibromocamphor" (17) (13) with refluxing KOH/EtOH for 5-8 h produces (+)-acampholenic acid (18) (12) or the corresponding bromo-acid (19) (13). At that time (1900-1924) "P-bromocamphor" and "a,P-dibromocamphor" were assigned structures that, in modem nomenclature, would be named 6-bromocamphor (16) and 3,6-dibromocamphor (17), respectively, and their ring cleavage to (+)-a-campholenic acid (18) and its bromo derivative (19) were consistent with these structural assignments. However, the results of later investigations (24)(25)(26) indicated that "P-bromocamphor" (mp 78"C), derived from 1 -hydroxycamphene (20) (12), was identical to 10-bromocamphor (21), mp 78"C, prepared by thermolysis of 10-camphorsulfonyl bromide (22) (23) or camphor-10-mercurichloride (23) (26), and this structure assignment is now commonly accepted.…”