Preparation of 1, 2-dihydrobenzo [g] chryaen-4 (3H)-one (6) and 7, &dihydrobenzo [g] chrysen-5 (6H)-one (1 11, ketones suitable for further elaboration to potential metabolites of benzo [g] chrysene in the 1, 2, 3, 4-and 5, 6, 7, 8-benzo rings, respectively, was achieved through two cyclization steps. Photochemical closure of 241-or 2-naphthy1) styrene derivatives 4 and 9 afforded chrysene and benzo [c] phenanthrene ring systems with a ...
![1-[2]naphthyl-cyclopentanol结构式](https://image.chemsrc.com/caspic/283/110971-70-5.png)
![7,8-dihydrobenzo[g]chrysen-5(6H)-one结构式](https://image.chemsrc.com/caspic/307/111004-91-2.png)
![5-hydroxy-5,6,7,8-tetrahydrobenzo[g]chrysene结构式](https://image.chemsrc.com/caspic/131/110971-74-9.png)
![4-(6-benzo[c]phenanthrenyl)butyric acid结构式](https://image.chemsrc.com/caspic/207/110971-72-7.png)
![ethyl 4-(6-benzo[c]phenanthrenyl)butyrate结构式](https://image.chemsrc.com/caspic/007/110971-55-6.png)
![1,2-dihydrobenzo[g]chrysen-4(3H)-one结构式](https://image.chemsrc.com/caspic/083/110971-53-4.png)
![4-hydroxy-1,2,3,4-tetrahydrobenzo[g]chrysene结构式](https://image.chemsrc.com/caspic/169/110971-73-8.png)
![7,8-dihydrobenzo[g]chrysene结构式](https://image.chemsrc.com/caspic/403/109676-86-0.png)
![1,2-dihydrobenzo[g]chrysene结构式](https://image.chemsrc.com/caspic/469/110971-56-7.png)