The synthesis and reduction with lithium in ethylamine of the entitled stereoisomeric allyl ethers 1 and 2 are described. The reaction of both the isomers occurred very readily with concomitant cleavage of the methoxy groups, and gave the same products, 4-tert-butyl-1- methylcyclohexene (13), and c-and t-3-tert-butyl-6-methylcyclohex-1-enes (14 and 15), in the same ratio (87: 4: 9), indicating that the respective reactions involved a common ...