6287-82-7, In heterogeneous catalysis, the catalyst is in a different phase from the reactants. At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 6287-82-7, name is 2,3-Dibromobenzo[b]thiophene. In an article£¬Which mentioned a new discovery about 6287-82-7
An efficient novel synthesis of beta-(azuleno[1,2-b]benzothienyl)-and beta-(azuleno[2,1-b]benzothienyl)-alpha,beta-unsaturated ketones by the tropylium ion-mediated intramolecular furan ring-opening reaction and X-ray investigation of methyl ketone derivative
Intramolecular reaction of 2-tropylio-3-(5-substituted 2-furyl) benzothiophenes (3), prepared from the corresponding 2-cycloheptatrienyl-3-(5- substituted 2-furyl)benzothiophenes (2), afforded the beta-(azuleno[1,2-b] benzothienyl)-alpha,beta-unsaturated ketones (4), which are otherwise difficult to obtain, in moderate yields. The reaction involves a ring-opening process of the furan ring by intramolecular attack of the tropylium ion onto the 2-position of the furan ring. Similarly, beta-(azuleno[2,1-b]benzothienyl)- alpha,beta-unsaturated ketones (8) were obtained from the corresponding 3-tropylio-2-(5-substituted 2-furyl)benzothiophenes (7) albeit in lower yields. The molecular and crystal structures of the methyl ketone derivative, 8a, are discussed on the basis of X-ray structure analysis.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 6287-82-7 is helpful to your research. 6287-82-7
Reference£º
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem