7641-77-2

Usage

InChI:InChI=1/C12H18/c1-7-8(2)12(6)10(4)9(3)11(7,12)5/h1-6H3

Upstream product

• 503-17-3 dimethylacetylene 
• 4116-93-2 deca-2,8-diyne 
• 87-85-4 Hexamethylbenzene 

Downstream Products

• 39504-54-6 3,6-Dimethoxy-1,2,3,4,5,6-hexamethylcyclohexa-1,4-diene 
• 20379-84-4 5-Methoxymethyl-1,2,3,4,6-pentamethyl-1,4-cyclohexadien 
• 50336-45-3 1,2,3,4,5,6-hexamethyl-9-phenyl-7-oxa-8-aza-tricyclo[4.3.0.0^2,5]nona-3,8-diene 
• 4045-44-7 1,2,3,4,5-pentamethylcyclopentadiene 
• 50336-46-4 1,2,3,4,5,6-hexamethyl-9-(4-nitro-phenyl)-7-oxa-8-aza-tricyclo[4.3.0.0^2,5]nona-3,8-diene 
• 50336-47-5 1,2,3,4,5,6-hexamethyl-9-(2,4,6-trimethyl-phenyl)-7-oxa-8-aza-tricyclo[4.3.0.0^2,5]nona-3,8-diene 
• 87-85-4 Hexamethylbenzene 
• 78580-06-0 (2R,3R,5R,6R)-1,2,3,5,6-Pentamethyl-4-methylene-3-phenylsulfanyl-tricyclo[3.1.0.0^2,6]hexane 
• 15971-76-3 5-acetyl-1,2,3,4,5-pentamethylcyclopentadiene 
• 87-85-4 hexamethylbenzene radical cation 
• 882-33-7 diphenyldisulfane 
• 3854-96-4 2,3,4,5,6,6-hexamethylcyclohexa-2,4-dien-1-one 
• 87-85-4 hexamethylbenzene radical cation 

Relevant academic research and scientific papers

Formation of p-xylylene from p-xylene by a two-photon process and hexamethyl Dewar benzene from hexamethylbenzene by a one-photon process at 193 nm

While studying a series of methyl-substituted benzenes, C6H 6-n(CH3)n with n = 2, 3, 4, 6, and perfluorobenzene in the gas phase using 193-nm laser flash photolysis, we observed the formation of p-xylylene (benzoquinodimethane) due to the elimination of two hydrogen atoms as a result of a two-photon process. The results were explained in terms of an intermediate hot molecule formed by internal conversion which finally led to the ground electronic state. Quadratical dependencies on the photoproducts were observed for toluene, xylene, mesitylene, and perfluorobenzene in the presence of a foreign gas, while linear dependencies were observed for durene and hexamethylbenzene. Dewar-type benzene was detected from photolysis of hexamethylbenzene.

Quantum amplified isomerization: A new concept for polymeric optical materials

The preparation and evaluation of a new class of photoresponsive polymers are described on the basis of a process called quantum amplified isomerization (QAI). The QAI process utilizes photoinitiated, cation radical isomerization chemistry in a polymeric medium. Two classes of materials are described: one where the QAI reactant is molecularly doped in the polymer matrix and another where the reactant is part of a functionalized polymer. Quantum yield experiments demonstrate that the isomerization reaction can proceed by a chain process with modest efficiencies. Photochemical conversion experiments show that high extents of conversion of the QAI reactants are possible. The rate and extent of conversion are strongly correlated to the glass transition temperature of the polymer. For molecularly doped polymers, hypotheses to explain the high conversions based on diffusion or phase separation of the reactants were tested and excluded. Models are discussed to rationalize experimental factors that affect the quantum yields and the photochemical conversions.

Two-Step Route toward Some Propellanes and Their Conversion into Stable Tricyclic Cations

The synthesis of 1,4-tetramethylene(Dewar benzene) (2, a propellane) and its conversion to the propellanes 3 and 10 are described.Reaction of alcohol 10 with FSO3H/SO2ClF at low temperature (-135 deg C) yielded tricyclic cation 12, which rearranged at -75 deg C to a mixture of three isomeric cations.The structures and rearrangements of the cations were studied with 1H and 13C NMR spectroscopy and deuterium labeling.