1. FVP of para-methoxystyrylarenes (5a-c) all gave the corresponding phenol products 21a-c. FVP of 5a and 5c also gave tricyclic products 22 and 23, respectively, which all included indene structure. But FVP of 5b gave naphthalene by ring opening of the furan. 2. FVP of 2-azidocyclohexanone (70) gave four products 83-86, and product 84 was a new compound. We provided a method to synthesize a new tricyclic product by one step. 3. Pyrolytic study of five 6-arylfulvenes (78-82). The products from FVP of 78-82 and mechanisms to account for their products will be discussed. FVP of compounds 79 and 80 gave naphthalene (96) and indene (97), respectively, by elimination of either a S or a CO molecule.