Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. name: 6,7-Dimethoxy-3,4-dihydroisoquinoline. Introducing a new discovery about 3382-18-1, Name is 6,7-Dimethoxy-3,4-dihydroisoquinoline
Irradiation of o-vinylbenzaldehyde (1) in the presence of primary and secondary amines results in N-H addition across the two chromophores of 1, to give o-ethylbenzamides 6. Photoreaction of deuterium-labeled aldehyde 15 with piperidine gave an amide (17) carrying a deuterium at the beta-carbon of the ethyl side chain whereas use of N-deuteriopiperidine led to deuterium incorporation at the alpha-carbon (14). These results are explained on the basis of a 1,5 hydrogen shift in the excited state of 1 to give a ketene methide intermediate (7) which becomes trapped with amines. Upon 308 nm laser excitation of 1 in acetonitrile or benzene solution, a weak transient absorption having lambda(max) at 380 nm was observed. Irradiation of 1 isolated in an argon matrix with 313 nm light also revealed formation of an intermediate with a UV absorption maximum around 380 nm. Its IR spectrum displayed characteristic ketene stretching vibrations at 2086 and 2098 cm- 1, providing definitive support for the ketene methide structure 7.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.name: 6,7-Dimethoxy-3,4-dihydroisoquinoline, you can also check out more blogs about3382-18-1
Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem