(5-indanyl) (2-propenyl) ether 1H-indene, 2,3-dihydro-5-(2-propenyloxy)- 5-(allyloxy)indane InChI=1/C12H14O/c1-2-8-13-12-7-6-10-4-3-5-11(10)9-12/h2,6-7,9H,1,3-5,8H allyl (5-indanyl) ether