m.p. 96-98°C
[α]D20 +84.4°(c=1 CHCl3) Anal.(C12H30O2) C,H,O. IR(KBr)3025,2950,1765,1657,1630,1450,1210,1198cm-1. NMR(CDCl3) δ0.77,0.89,2.13,5.4-5.8