6933-23-9

Upstream product

• 4227-95-6 [13C]methyl iodide 
• 591-51-5 phenyllithium 
• 14742-26-8 [¹³C]methanol 
• 71-43-2 benzene 
• 69838-86-4 [α-13C]benzyl bromide 

Downstream Products

• 124-38-9 carbon dioxide 
• 1111-72-4 carbon dioxide 
• 58022-53-0 methylcyclohexane 
• 386707-40-0 (5,10,15,20-tetrakis(p-tolyl)porphyrinato)(methyl)iridium(III) 
• 69838-86-4 [α-13C]benzyl bromide 
• 1394171-08-4 1'-¹³C₂-phenylbenzothiazole 
• 81255-48-3 p-toluene-methyl-13C-sulfonyl fluoride 

Relevant academic research and scientific papers

Unraveling the Dynamic Network in the Reactions of an Alkyl Aryl Ether Catalyzed by Ni/γ-Al2O3 in 2-Propanol

The reductive cleavage of aryl ether linkages is a key step in the disassembly of lignin to its monolignol components, where selectivity is determined by the kinetics of multiple parallel and consecutive liquid-phase reactions. Triphasic hydrogenolysis of

The influence of catalyst acid strength on the methanol to hydrocarbons (MTH) reaction

The methanol to hydrocarbons (MTH) reaction was studied over two isostructural zeotype catalysts of different acid strength, H-SAPO-5 and H-SSZ-24. Conversion of methanol alone was performed at 350-450 C and WHSV = 0.31-2.48 h-1. The product selectivities of the two catalysts were compared at similar conversion. The strongly acidic H-SSZ-24 was found to be more selective towards aromatic products and C2-C3 hydrocarbons as compared to the moderately acidic H-SAPO-5, which produced more non-aromatic C4+ hydrocarbons. Co-reactions of 13CH 3OH and benzene at 250-300 C with low conversion of both reactants revealed that both catalysts produced ethene and propene from polymethylbenzenes via a paring mechanism. However, this reaction proceeded more readily in H-SSZ-24 than in H-SAPO-5. Furthermore, isobutene formation was found to be mainly associated with aromatic intermediates in H-SSZ-24, whereas isobutene produced over H-SAPO-5 was mainly formed via alkene intermediates. Overall, the results obtained in this study suggest that a lower acid strength promotes an alkene-mediated MTH reaction mechanism.

Thermal isomerization of benzocyclobutene

Thermolysis of benzocyclobutene 13CH2, 99percent gives styrene labeled in the β (48percent), ortho (30percent), α (14percent), meta (4percent), and para (4percent) positions.The major labels (β and ortho) are consistent with a mechanism involving interconversions of the isomeric tolylmethylenes and the methylcycloheptatrienes.This mechanism also involves interconversion of o-tolylmethylene with o-xylylene and p-tolylmethylene with p-xylylene.A minor mechanism produces 25percent of styrene.This mechanism involves cleavage of the aryl carbon to the methylene carbon bond in benzocyclobutene followed by hydrogen transfer to produce styrene.Thermolysis of p-xylylene produced from paracyclophane gives styrene (55percent), p-xylene (31percent), benzocyclobutene (4percent), benzene (4percent), and toluene (3percent).Thermolysis of metacyclophane gives styrene (18percent), p-xylene (25percent), m-xylene (3percent), benzocyclobutene (1percent), benzene (7percent), and toluene (22percent).

Low-Temperature 13C-NMR. Spectroscopy of Organolithium Derivatives. - 13C,6Li-Coupling, a Powerful Structural Information

The 13C-NMR. spectra of thirteen lithiated hydrocarbons (1c-13c, Table 2) and of eighteen α-halo-lithium carbenoids (14c-31c, Table 3) have been recorded in donor solvent (R2O, R3N) mixtures at temperatures down to -150 deg C.The organolithium species wer