Results 191 to 200 of about 13,076 (231)
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Journal of the Chemical Society, Perkin Transactions 1, 1980
Reaction of arylaldehydes with 2,4-dimethylpyridine and n-butyl-lithium gives in good yield 1-aryl-2-(4-methylpyridyl)ethanols which, after dehydration with polyphosphoric acid and catalytic hydrogenation, give 2-phenethyl-4-methylpyridines. Cyclisation of the derived tetrahydropyridines gives 1,4-dimethyl-2,3,4,5,6,7-hexahydro-1,5methano-1H-4 ...
Francis J. Smith, George R. Proctor
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Reaction of arylaldehydes with 2,4-dimethylpyridine and n-butyl-lithium gives in good yield 1-aryl-2-(4-methylpyridyl)ethanols which, after dehydration with polyphosphoric acid and catalytic hydrogenation, give 2-phenethyl-4-methylpyridines. Cyclisation of the derived tetrahydropyridines gives 1,4-dimethyl-2,3,4,5,6,7-hexahydro-1,5methano-1H-4 ...
Francis J. Smith, George R. Proctor
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Chemischer Informationsdienst, 1983
AbstractEine neuartige Synthese der Bisethoxycarbonylderivate (IV) wird beschrieben.
S. J. MILLER +2 more
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AbstractEine neuartige Synthese der Bisethoxycarbonylderivate (IV) wird beschrieben.
S. J. MILLER +2 more
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Chemischer Informationsdienst, 1986
Abstract9‐Bromobenzosuberone (Ia) was converted via (Ib) into several other benzosuberones (Ic), but attempts to cause them to cyclise to the tricyclic 1,4‐ethano‐3‐benzazepine system were unsuccessful.
J. SEDGEWORTH, G. R. PROCTOR
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Abstract9‐Bromobenzosuberone (Ia) was converted via (Ib) into several other benzosuberones (Ic), but attempts to cause them to cyclise to the tricyclic 1,4‐ethano‐3‐benzazepine system were unsuccessful.
J. SEDGEWORTH, G. R. PROCTOR
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Chemischer Informationsdienst, 1979
AbstractDie Benzosuberone (I) werden mit NBS in die 9‐Bromderivate (II) übergeführt.
M. CURPHEY +3 more
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AbstractDie Benzosuberone (I) werden mit NBS in die 9‐Bromderivate (II) übergeführt.
M. CURPHEY +3 more
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Chemischer Informationsdienst, 1981
AbstractDas als potentielles Analgeticum interessante Hexahydromethanobenzazonin (VII) wird ausgehend vom Dimethylpyridin (I) synthetisiert.
F. J. SMITH, G. R. PROCTOR
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AbstractDas als potentielles Analgeticum interessante Hexahydromethanobenzazonin (VII) wird ausgehend vom Dimethylpyridin (I) synthetisiert.
F. J. SMITH, G. R. PROCTOR
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Journal of the Chemical Society, Perkin Transactions 2, 1972
The synthesis of several series of bridged dinuclear aromatic compounds of the type p-F·C6H4·Z·C6H4·X-p[Z = all-trans-·CHCH–CHCH·, CCH2, CH2, CH(OH), CMe(OH), –O–, or –S–; X = NH2, OMe, H, F, Cl, or NO2] is described. The 19F n.m.r. spectra of these compounds are used to examine the ‘transmission’ of electronic effects, due to the group X, across the ...
I. R. Ager, L. Phillips, S. J. Roberts
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The synthesis of several series of bridged dinuclear aromatic compounds of the type p-F·C6H4·Z·C6H4·X-p[Z = all-trans-·CHCH–CHCH·, CCH2, CH2, CH(OH), CMe(OH), –O–, or –S–; X = NH2, OMe, H, F, Cl, or NO2] is described. The 19F n.m.r. spectra of these compounds are used to examine the ‘transmission’ of electronic effects, due to the group X, across the ...
I. R. Ager, L. Phillips, S. J. Roberts
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Polycarbocyclic Bridged Ring Compounds
1991Publisher Summary This chapter reviews significant advances in the synthesis and chemistry of polycarbocyclic bridged ring compounds. This class of compounds frequently possesses rigid structures whose carbocyclic frameworks contain varying degrees of steric strain and in recent years, highly region- and stereo selective methods have been developed ...
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Journal of the Chemical Society, Perkin Transactions 1, 1991
Ethyl 3,4-dimethoxyphenyl(phenyl)acetate 7, (R = Et), made by an improved procedure, was converted into ethyl 1,2,3,4-tetrahydro-6,7-dimethoxy-4-oxo-1-phenyl naphtha lene-1-ca rboxylate 15 which was used both in a synthesis of 2,3,4,5-tetra hydro-7,8-dihydroxy-1-phenyl-1,4-methano-1H-3-benzazepine and as starting material for 2,3,4,5-tetrahydro-7,8 ...
Robert G. Gentles +3 more
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Ethyl 3,4-dimethoxyphenyl(phenyl)acetate 7, (R = Et), made by an improved procedure, was converted into ethyl 1,2,3,4-tetrahydro-6,7-dimethoxy-4-oxo-1-phenyl naphtha lene-1-ca rboxylate 15 which was used both in a synthesis of 2,3,4,5-tetra hydro-7,8-dihydroxy-1-phenyl-1,4-methano-1H-3-benzazepine and as starting material for 2,3,4,5-tetrahydro-7,8 ...
Robert G. Gentles +3 more
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Journal of the Chemical Society, Perkin Transactions 1, 1979
2, 3, 4, 5-Tetrahydro-1, 4-dimethyl-5-oxo-1-benzazepine has been obtained by methylation (Mel) of 2, 3, 4, 5-tetrahydro-5-oxo-1H-1-benzazepine using lithium di-isopropylamide, but a similar attempted alkylation reaction with 1, 2-di-iodoethane was unsuccessful.
Mary Lennon, George R. Proctor
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2, 3, 4, 5-Tetrahydro-1, 4-dimethyl-5-oxo-1-benzazepine has been obtained by methylation (Mel) of 2, 3, 4, 5-tetrahydro-5-oxo-1H-1-benzazepine using lithium di-isopropylamide, but a similar attempted alkylation reaction with 1, 2-di-iodoethane was unsuccessful.
Mary Lennon, George R. Proctor
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ChemInform, 1987
AbstractThe iodine‐substituted enamides (I), (IV), (VI), and (IX) are cyclized, yielding the compounds (II), (V), (VII), (VIII), and (X).
R. GRIGG +3 more
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AbstractThe iodine‐substituted enamides (I), (IV), (VI), and (IX) are cyclized, yielding the compounds (II), (V), (VII), (VIII), and (X).
R. GRIGG +3 more
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