The new chiral nonracemic homoallylic exo-alcohols 6, 7, 10 with (1R)-(+)-camphor (1) and endo-alcohols 8, 9, 11 with (1R)-(−)-fenchone (2) skeleton were synthesized in high yields by the stereoselective addition of allyl and substituted allylic Grignard reagents 3–5 to 1 and 2, respectively. The addition of the 2-butenyl (crotyl) reagent 5 occurred with high selectivity leading exclusively to α-methylallyl
diastereoisomerically pure epoxy alcohols were prepared diastereoselectively in high yields after epoxidation of allyl and homoallyl alcohols containing the 1R-fenchone skeleton with VO(acac)2/t-butyl hydroperoxide. The configurations of some of the new chiral compounds were determined by NMR methods. An interesting rearrangement reaction of an epoxy alcohol to an olefinic diol catalyzed by V5+ ions was observed