2091-90-9

Basic information

• Product Name: 1,2,3,4-TETRAHYDROCHRYSENE
• Synonyms: 1,2,3,4-TETRAHYDROCHRYSENE
• CAS NO: 2091-90-9
• Molecular Formula: C₁₈H₁₆
• Molecular Weight: 232.31964
• Mol File: 2091-90-9.mol
• Article Data: 4

Chemical Properties

• Melting Point: 180.5-181.5 °C
• Boiling Point: 422.3°C at 760 mmHg
• Flash Point: 201.2°C
• Appearance: /
• Density: 1.136g/cm³
• Vapor Pressure: 5.99E-07mmHg at 25°C
• Refractive Index: 1.696
• CAS DataBase Reference: 1,2,3,4-TETRAHYDROCHRYSENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,4-TETRAHYDROCHRYSENE(2091-90-9)
• EPA Substance Registry System: 1,2,3,4-TETRAHYDROCHRYSENE(2091-90-9)

Safety Data

• Hazardous Substances Data: 2091-90-9(Hazardous Substances Data)

Usage

Synthesis Reference(s)

Tetrahedron Letters, 29, p. 3865, 1988 DOI: 10.1016/S0040-4039(00)82136-X

InChI:InChI=1/C18H16/c1-3-7-15-13(5-1)9-11-18-16-8-4-2-6-14(16)10-12-17(15)18/h1,3,5,7,9-12H,2,4,6,8H2

Upstream product

• 42768-88-7 4,5,6,7-tetrahydro-4-benzofuran 
• 42768-98-9 1-bromo-2-naphthyl p-toluenesulfonate 
• 218-01-9 chrysene 
• 6651-36-1 1-(Trimethylsilyloxy)cyclohexene 
• 43017-75-0 1-naphthylacetaldehyde 
• 99671-88-2 1,2,3,4,5,6,16,17-Octahydro-chrysen-dicarbonsaeure-(1,2) 
• 2091-91-0 1,2,3,4,5,6-Hexahydrochrysene 
• 66267-06-9 4-keto-1,2,3,4-tetrahydrochrysene 

Downstream Products

• 2091-91-0 1,2,3,4,5,6-Hexahydrochrysene 
• 141511-29-7 2-nitro-7,8,9,10,11,12-hexahydrochrysene 
• 3989-90-0 2-nitrochrysene 
• 218-01-9 chrysene 

Relevant articles and documents

α-Oxoketene dithioacetal mediated aromatic annulation: Highly efficient and concise synthetic routes to potentially carcinogenic polycyclic aromatic hydrocarbons

Highly efficient regiospecific routes to potentially carcinogenic polycyclic aromatic hydrocarbons such as substituted benzo[c]phenanthrenes, benzo[c]fluorenes, 16,17-dihydro-11-methyl-15[H]cyclopenta[a]phenanthrene, 5-methyl-7,8,9,10-tetrahydrochrysene and 1,4-dimethylphenanthrene have been developed. The overall strategy involves our aromatic annulation protocol through base induced conjugate addition-elimination on the cyclic and acyclic α-oxoketene dithioacetals with the appropriate arylacetonitriles followed by acid induced cyclodehydration of the resulting conjugate adducts. Subsequent reductive dethiomethylation (Raney Ni) and dehydrogenation (DDQ) of the cyclized products affords the methyl substituted PAHs in high yields.

A NEW SYNTHESIS OF POLYCYCLIC AROMATIC HYDROCARBONS VIA TITANIUM(IV)-CATALYZED ALDOL-TYPE CONDENSATION OF SILYL ENOL ETHERS WITH 2-ARYLACETALDEHYDES

Anovel one-pot synthesis of angular polycyclic hydrocarbon ring systems involving Ti(IV)-catalyzed aldol-type condensation of silyl enol ethers with 2-arylacetaldehydes and cyclization of the adducts is described.