7125-62-4

Upstream product

• 91-20-3 naphthalene 
• 219-92-1 dibenzocycloheptene 

Downstream Products

• 529-34-0 3,4-dihydronaphthalene-1(2H)-one 
• 140-75-0 para-fluorobenzylamine 
• 66377-63-7 (1,2,3,4-tetrahydronaphthalen-4-yl)methanol 
• 155566-54-4 1,2,3,4-tetrahydro-1-naphthalenecarbaldehyde 
• 1345688-72-3 4-[4-(4-chlorophenyl)piperidin-1-yl]-1-(6,7,8,9-tetrahydro-5H-benzo[7]annulen-2-yl)butan-1-one hydrochloride 
• 1345688-38-1 4-[4-(4-chlorophenyl)piperidin-1-yl]-1-(6,7,8,9-tetrahydro-5H-benzo[7]annulen-2-yl)butan-1-one 
• 98249-12-8 6-Benzylseleno-benzocycloheptenon-⁽⁷⁾ 
• 108368-37-2 5-benzoyloxymethylene-5,7,8,9-tetrahydro-benzocyclohepten-6-one 

Relevant academic research and scientific papers

AuCl3-Catalyzed Ring-Closing Carbonyl–Olefin Metathesis

Compared with the ripeness of olefin metathesis, exploration of the construction of carbon–carbon double bonds through the catalytic carbonyl–olefin metathesis reaction remains stagnant and has received scant attention. Herein, a highly efficient AuCl3-catalyzed intramolecular ring-closing carbonyl–olefin metathesis reaction is described. This method features easily accessible starting materials, simple operation, good functional-group tolerance and short reaction times, and provides the target cyclopentenes, polycycles, benzocarbocycles, and N-heterocycle derivatives in good to excellent yields.

Thermal Reorganizations of 1,2:3,4-Dibenzotropilidene (5H-Dibenzocycloheptene), 7,7'-Bi(1,2:3,4-dibenzotropyl) cycloheptenyl)>, and the 1,2:3,4-Dibenzotropyl (Dibenzocycloheptenyl) Free Radical

1,2:3,4-Dibenzotropilidene (5H-dibenzocycloheptene, 8) has been shown to thermally produce phenanthrene (12), 9-methylphenanthrene (13), 9,10-dihydrophenanthrene (14), and 1,2:3,4-dibenzocycloheptadiene (6,7-dihydro-5H-dibenzocycloheptene, 15).With added naphthalene, to trap the extruded one-carbon species, 1,2-benzotropilidene (16), α-methyl- and β-methylnaphthalene (17 and 18), 1,2-benzo-1,3-cycloheptadiene (19), and benzocycloheptene (20) were also produced.Reaction of 1,2-benzotropilidene with phenanthrene produced 1,2:3,4-dibenzotropilidene (8) and naphthalene, showing the reversibility of this thermal carbon extrusion reaction. 7,7'-Bi(1,2:3,4-dibenzotropyl) cycloheptenyl), 10> was prepared by VCl2 reduction of the 1,2:3,4-dibenzotropylium cation.Thermally it underwent the same reactions as 8, demonstrating that it is the 1,2:3,4-dibenzotropyl (dibenzocycloheptenyl) free radical (9) which lost a carbon atom (CH group) to the aromatic acceptor.At 200 deg C the dimer 10 produced significant quantities of 9-methylphenanthrene (13), shown not to arise from 8, in addition to phenanthrene, 12.Mechanisms for the thermal transfer of a CH group from 9 to an aromatic acceptor and for the production of 13 from 9 are presented.