2a,2b,6b,6c-Tetrahydro-1-oxa-2-thiabenzo[a]cyclopropa[cd]pentalene 2-Oxide

tert-butyl 1-methylindan-2-percarboxylate

3a,7a-dihydro-1H-indene

1-甲基四氢萘

2-甲基-1,2,3,4-四氢萘