نتایج جستجو برای: isoquinoline phenacyl bromids
تعداد نتایج: 1650 فیلتر نتایج به سال:
The title compound, C(17)H(14)N(2)O, crystallizes as a cis formamide isomer. The isoquinoline and benzene fragments are nearly perpendicular [dihedral angle = 81.79 (18)°], whereas the formamide group is virtually coplanar with the isoquinoline unit [dihedral angle = 1.66 (15)°]. Inter-molecular N-H⋯O hydrogen bonds link mol-ecules into a centrosymmetric dimer.
BACKGROUND Some isoquinoline alkaloids from Macleaya cordata (Willd). R. Br. (Bo Luo Hui) exhibited antibacterial, antiparasitic, antitumor, and analgesic effects. The targets of these isoquinoline alkaloids are undefined. This study aims to investigate the compound-target interaction network and potential pharmacological actions of isoquinoline alkaloids of M. cordata by reverse pharmacophore ...
3-mercapto-1,2,4 benzotriazine (1) was methylated by methyl iodide in the presence of base to afford 1,2-dihydro-3-methyhercapto-1, 2,4 benzotriazine (2). the latter was reacted with hydrazine hydrate to give the corresponding 3-hydrazine derivative (3). compound (3) on condensation with phenacyl bromide gave 3- phenacyl hydrazino l,2,4-benzotriazine (4). ppa cyclization of the ketone (4) yield...
garciniavalline (1), a novel aporphinoid alkaloid, in addition to four known alkaloids,cleistopholine (2), o-methylmoschatoline (3), (-)-oliveroline (4) and (-)-oliveridine (5), wereisolated and characterized from garcinia parvifolia miq. stem bark. structural elucidation ofthese compounds was established by spectroscopic methods. among them, alkaloids (2) and (4)exhibited antiplasmodial activi...
In the title isoquinoline-dione derivative, C(16)H(16)N(2)O(3)S, the piperidine ring in the tetra-hydro-isoquinoline ring system adopts a distorted envelope conformation. The thia-zole ring is essentially planar [maximum deviation = 0.004 (1) Å] and is inclined at a dihedral angle of 31.08 (3)° with respect to the mean plane through the tetra-hydro-isoquinoline ring system. In the crystal struc...
An efficient procedure for 2-aroylbenzofuran preparation from 2-bromophenols, phenacyl bromides and paraformaldehyde is described. The cheap and stable paraformaldehyde served as the carbon source via an in situ formylation reaction.
Axially chiral biaryls were synthesized by an isoquinoline or 2-pyridine-directed Rh(III)-catalyzed dual C-H cleavage and coupling with internal alkynes in good to excellent yields. Oxidation of isoquinoline derivatives with m-CPBA furnished their corresponding N-oxides, which could be utilized as Lewis base catalysts in asymmetric reactions.
Treatment of 1-(2-bromoarylmethyl)-3,4-dihydroisoquinolines with oxalyl chloride and triethylamine gave 1-(2-bromophenyl)-5,6-dihydropyrrolo[2,1-a]isoquinoline-2,3-dione derivatives, for example, 1-(2-bromophenyl)-5,6-dihydro-8,9-dimethoxypyrrolo[2,1-a]isoquinoline-2,3-dione. Radical cyclisation of these derivatives with tributyltin hydride and 1,1-azobis(cyclohexanecarbonitrile) afforded telis...
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