F. Simart et al., A NEW METHOD FOR THE PREPARATION OF THE 6,6-RING-SYSTEM AND 6,7-RING-SYSTEM OF BICYCLIC ETHERS, Tetrahedron, 54(44), 1998, pp. 13557-13566
Preparation of 2,7-dioxabicyclo[4.4.0]decane and 2,8-dioxabicyclo[5.4.
0]undecane derivatives in five steps from dihydropyran are reported. T
ransformation of 3-bromo-2-allyloxepane into 2,7-dioxabicyclo-[5.4.0]-
undecane is also described. (C) 1998 Elsevier Science Ltd. All rights
reserved.