GAS-CHROMATOGRAPHIC SEPARATION OF DEUTERATED AND OPTICAL ISOMERS OF DI-2-BUTYL ETHERS

By connecting a DB-5 column in series with a Cyclodex-B column, nine of ten isomers of a mixture of di-2-butyl ether-d(0), di-2-butyl ether-d(5) and di-2-butyl ether-d(10) produced during the dehydration of a 1:1 mixture of 2-butanol-d(0) and 2-butanol-d(5) using an Al2O3 catalyst, were separated and identified. The (R,S) and (S,R) isomers of di-2-butyl ether-d(5) could not be separated due to the similarity of their interactions toward the DB-5 and Cyclodex-B columns.