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Thiophen Analogues of Isoquinoline

Thiophen Analogues of Isoquinoline.—4,7-Dimethylthieno[2,3-c]pyridine has been synthesized by hydrolysing the acetal function of (252). This compound was obtained by the reaction of 2-(3-lithio-2-thienyl)-l,3-dioxolan with diacetyl followed by oximation and reduction. 6,7-Dimethylthieno[3,2-c]pyridine was obtained in an analogous manner, (2,5-Dimethyl-3-thienyl)acetone gave (253) on acylation. Treatment with perchloric acid gave the pyrylium salt (254), which upon reaction with NH3 gave (255). The same reaction sequence with (3-benzo- [Pg.292]

Tominaga, R. Natsuki, Y. Matsuda, and G. Kobayashi, Yakugaku Zasshi, 1974, [Pg.292]

7-tetrahydrothieno[3,2-c] pyridine to thieno[3,2-c] pyridine over a chromium catalyst has been patented. Oxazolones (289), easily obtained [Pg.132]

Meth-Cohn, B. Narine, B. Tarnowski, R. Hayes, A. Keyzad, S. Rhouati, and A. Robinson, J. Chenu Soc., Perkin Trans. 1, 1981, 2509. [Pg.132]

Piovesana, L. Sestili, and C. Troni, J. Inorg. Nucl. Chem., 1981, 43, 2321. [Pg.132]

Tsuchiya, M. Enkaku, and S. Okajima, Chem. Pharm. Bull., 1981, 29, 3173. [Pg.132]


Thiophene analogues of isoquinolines have also been synthesised through lithiation reaction... [Pg.125]

Thiophen Analogues of Isoquinoline. - Several derivatives of thienol3,2-c]pyridine, such as 4-allyl-5-methyl-4,5-dihydrothieno-... [Pg.137]

This reaction has been modified to occur in a solvent such as CHsCN and CH2Cl27 The synthesis of thiophene analogues of isoquinolines is another modification. ... [Pg.411]

The condensation of thiophen aldehydes with nitromethane to oj-nitro-vinylthiophens has been extensively used in connection with the synthesis of thiophen analogues of isoquinoline. The liquid-phase hydrogenation of o)-nitro-2-vinylthiophen over Pd-black to 2-thienylacetaldoxime has... [Pg.403]

Thiophen Analogues of Isoquinoline and Related Compounds.— During the past three years, interest in the synthesis, reactions, and physical properties of these compounds has been noticeable, and four different research groups have made important contributions to this field. Both thieno[2,3-c]-pyridine (548) and thieno[3,2-c]pyridine (549) have been prepared in a... [Pg.475]

Thiophen Analogues of Indole, Quinoline, Isoquinoline, and Similar Systems... [Pg.472]


See other pages where Thiophen Analogues of Isoquinoline is mentioned: [Pg.132]    [Pg.522]    [Pg.102]    [Pg.353]    [Pg.522]    [Pg.475]    [Pg.132]    [Pg.522]    [Pg.102]    [Pg.353]    [Pg.522]    [Pg.475]    [Pg.474]    [Pg.597]   


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Analogues of Isoquinoline

Isoquinoline analogues

Of isoquinolines

Of thiophene

Thiophene analogues

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