2-methyl-l,8-naphthyridine

Bis(2-methyl-l,8-naphthyridine)tetracarbonyldirhodium(I) perchlorate, 3833 Bis(l,8-naphthyridine)tetracarbonyldirhodium(I) perchlorate, 3791 Bis (9./V (/V -pcnt-2-cn-2-oxy-4-ylidcnc)-/V.. V-dimcthyldithiocarbazatc copper(II)perchlorate, 3718... [Pg.59]

E. V. Brown105 has described the synthesis of 2-methyl-l,8-naphthyridine, and several new derivatives by the EMME synthesis, starting with 2-amino-6-methylpyridine. [Pg.150]

Bis(2-methyl-l,8-naphthyridine)tetracarbonyldirhodium(I) perchlorate, 3827 Bis(dicarbonylcyclopentadienyliron)—bis(tetrahydrofuran)magnesium, 3829... [Pg.2267]

Chloro-2,7-dimethyl- gave 2,7-dimethyl-4-octyloxy-l,8-naphthyridine [CgH17 ONa (made in situ), Me2SO, 20°C 70%].1376 4-Chloro-7-methyl-2-phenyl- gave 2-methyl-l,8-naphthyridine [PhONa (made in situ), Me2NCHO, 80°C 77%].221... [Pg.215]

Cmde 2-methyl-l,8-naphthyridine-3-carbonyl chloride (15, R = Cl) gave 2-methyl-l,8-naphthyridine-2-carbohydrazide (15, R = NHNH2) (H2NNH2 H20, EtOH,... [Pg.251]

Methyl-l,8-naphthyridine-3-carbohydrazide gave 2-methyl-/V -methylbenzyli-dene-l,8-naphthyridine-3-carbohydrazide (28) (AcPh, trace AcOH, EtOH, reflux 86% analogs likewise).871... [Pg.255]

Note Of the many cyclizations based on 1,8-naphthyridinecarbohydrazides, only a few random examples appear here. 2-Methyl-l,8-naphthyridine-3-carbohydrazide (32) gave 2-methyl-3-(5-thioxo-4,5-dihydro-l,3,4-oxadiazol-2-yl)-l,8-naphthyridine (33) (CS2, KOH, H20, EtOH, reflux 75%).851... [Pg.256]

Ethyl-2-methyl-l,8-naphthyridine Ethyl 2-methyl-l,8-naphthyridine-3-... [Pg.396]

Ethyl-7-methyl-l,8-naphthyridin-4(l//)-one 7-Ethyl-2-methyl-l,8-naphthyridin-4(l//)-one... [Pg.396]

Methyl-l,8-naphthyridine-3-carbohydrazide 2-Methyl-1,8-naphthyridi ne-3-carbony lazide 2-Methyl-l,8-naphthyridine-3-carbonyl chloride... [Pg.403]

Methyl-l,8-naphthyridine-3-carboxylic acid 1 -Methyl-1,8-naphthyridine-2,7 (l//,8/7)-dione... [Pg.404]

Claisen-Schmidt condensation of 3-acetyl-2-methyl-l,8-naphthyridine 394 with aromatic aldehydes occurs in ethanol in the presence of KOH to give cinnamoyl-substituted 1,8-naphthyridines 395. The latter undergo cyclization with hydrazine hydrate or phenylhydrazine to form 3-(5-aryl-2-pyrazolin-3-yl)-l,8-naphthyridines 396a (62-84% yields) or 3-(5-aryl-l-phenyl-2-pyrazolin-3-yl)-2-methyl-l,8-nap-hthyridines 396b (64-86% yields), respectively, which exhibit pronounced anti-fugicidal activity (1988CCC1543). [Pg.253]

A mixture of 5-chloro-2-methyl-l,8-naphthyridine, phenylhydrazine, and anisole heated in an oil-bath until at ca. 90° an exothermic reattion starts and the temp, rises to 195°, heating resumed at 160-170° for 3 hrs. 2-amino-6-methyl-3-(l-phenylpyrazol-3-yl)pyridine. Y 75%. F. e. s. R. A. Bowie et al., Soc. Perkin I 1972, 1109, 1106. [Pg.112]

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