In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 5264-35-7, name is 5-Methoxy-3,4-dihydro-2H-pyrrole, introducing its new discovery. SDS of cas: 5264-35-7
Organic syntheses via transition metal complexes. 96. 1-azacycloalkene and 2-azabicycloalkene derivatives of 4-amino-1-metalla-1,3-dienes by reaction of saturated lactims with (1-alkynyl)carbene complexes of chromium and tungsten
Reaction of five- and six-membered O-alkyl lactims ?(CH2)n-N=C(OR)? 5 (n = 3) and 7 (n = 4) with (1-alkynyl)carbene complexes (CO)5M=C(OEt)C?CPh 1 (a, M = Cr; b, W) gives binuclear 1-alkoxy-2-azabicyclo[n.2.0]alkene derivatives (E)-6 and (E)-8, respectively, in 90-94% yields. Reaction of seven- and eight-membered O-alkyl lactims ?(CH2)n-N=C(OR)? 9 (n = 5) and 11 (n = 6) with compounds 1 affords mononuclear 4-(1-aza-cyclo-2-alken-1-yl) 1-metalla-1,3-butadienes (E)-10 and (E)-11, respectively, but no binuclear derivatives. Both mono- and binuclear metal compounds undergo fast transformations on contact with silica gel. Chromatography of the binuclear tungsten compound (E)-6b on silica gel results in fragmentation of the (cyclobutenyl)carbene unit to give 1,11-bis(tungsta)-5-azaundeca-1,3,6,8,10-pentaene (13) as well as in hydrolysis of the 2-alkoxy pyrrolidine unit with formation of a bis(carbene) derivative 15 of an amino acid. Compound 13, on extended contact with silica gel, undergoes cyclization and subsequent hydrolysis to 2-azabicyclo[3.3.0]octenone 14. Thermal fragmentation of the mononuclear dihydroazepine compound (E)-10c affords dihydro- and tetrahydropyrrolo[1,2-alpha]azepines 17 and 18, respectively. X-ray crystal structural data are reported for the binuclear compound (E)-6b as well as for mononuclear compounds (E)-10c and 14.
We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 5264-35-7, and how the biochemistry of the body works.SDS of cas: 5264-35-7
Reference£º
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem