1.5- dioxo-3-methyl-3-phenyl

Methyl 7-Methyl-l,3-dioxo-2-phenyl-2,3,6,7 tetrahydro-5,6-methano-l//,5//-pyrazolo l,2- ] l,2,4 triazole-5-carboxylate (310 Typical Procedure, Thermal Synthesis 45... [Pg.57]

Phthalazine l,4-Dihydroxy-6-methyl- E9a, 752 (subst. Phthalanhydrid/N2H4) Pyrazolidin 3,5-Dioxo-l-phenyl-VII/4, 301... [Pg.591]

Cyclopenten 2-Hydroxy-l-phenyl-3,4,5-trioxo- E15/2, 1453 f. (Dioxo-methyl-cyclobuten/Oxid.)... [Pg.837]

Ethan 1,2-Dioxo-l-phenyl-2-(2-pyrryl)- VII/2a, 752 Indolo 2,3-c pyran l-Methyl-3-oxo-3,9-dihydro- E15/2, 1266 [3-CHj-COOH -indol +... [Pg.970]

H-Purin l,9-Diraethyl-2,6-dioxo-8-phenyl-l,2,3,6-tetrahydro- E9b/2, 356 [5-NO —1-R —2,6-dioxo—4-NHR — pyrimdin/Ar — CHO] 2H-[Pg.1124]

Cyclohuten 2-Dimethylamino-3,4-dioxo-1 -(4-methyl-phenyl)-E15/2, 1444 (H Ar) Cyclopenta g indol 1-Methoxycarbo-nyl-l,6,7,8-tetrahydro- E6b/1,... [Pg.1129]

Butan 3,3-Dimethyl-l,2-dioxo-l-(2-methyl-phenyl)- E19d, 572 (Acylierung)... [Pg.1156]

CPPHA (N-(4-chloro-2-[(l,3-dioxo-l,3-dihydro-2H-isoindol-2-yl)methyl] phenyl) -2 -hydroxybenzamide)... [Pg.380]

Bromo-l-chloro-4-methyl- 164, 1469, 2891 8-Bromo-l-chloro-7-methyl- 163 l-Brorno-2,7-dioxo-9,9-diphenyl- 2378 l-Bromo-2,7-dioxo-9-methyl-9-(4-methyl-phenyl)-2378... [Pg.3428]

Benzyl-2 4,5,6-tetrahydro- 408 2- (Ethoxycarbonyl-methyl)-2,4,5,6-tetrahydro- 408 3- Hydroxy-2-phcnyl-2,4,5,6-tctrahydro- 440 3-Methyl-3,4.5,6-tetrahydro- 493 2- Phcnyl-2,4,5,6-tetrahydro- 408 3- PhenyI-3,4,5,6-tetrahydro- 493 4.6- Dit>xo-2-( 2-furyl)-4,6-dihydro- 319 4.6- Dioxo-2-phenyl-4,6-dihydro- 319 4.6- Dioxo-2-(2-thienyl)-4,6-dihydro- 319... [Pg.1181]

The introduction of a carbonyl carbamate group at position 4 of the pyrazol-3-one ring can be done directly by fusion of appropriately 2-substituted /i-keto ester with a hydrazine (04TJC659) (Scheme 16). The jS-keto ester 67 was synthesized in two steps from ethyl 4,5-dioxo-2-phenyl-4,5-dihydrofuran-3-carboxylate 65 by decarbonylation to ethoxy-carbonylbenzoylketene intermediate 66 in refluxing benzene and then nucleophilic addition by methyl carbamate. Ethyl 2-benzoyl-3-[(methoxy-carbonyl)amino]-3-oxopropanoate 67 with diphenylhydrazine on heating in benzene gave 4-substituted pyrazol-3-one 68 in 44% yield. [Pg.158]

Michael addition of 5-(2-alkyl-l-methylhydrazino)-2-phenylpyridazin-3(2//)-ones to dimethyl acetylenedicarboxylate produces 5- 2-alkyl-2-[l,2-bis(methoxycarbonyl)vinyl]-l-methylhydrazi-no -2-phenylpyridazin-3(2//)-ones, which cyclize on heating in Tetralin at 220 °C by a Diels -Reese reaction68 to give methyl 3-(alkylamino)-l-methyl-2,5-dioxo-6-phenyl-l,2,5,6-tetrahy-dropyrido[2,3-rf]pyridazine-4-carboxylates l.69... [Pg.23]

CsoHjaNiOiSf [2.6 dioxo-l>phenyl-imid Mdjdinyl-(4)-methyl]-diatilfid 85, 62,... [Pg.2821]

Analysis of the experimental and calculated hqhio couplings for dia-stereoisomers of the parent 6,8-dioxo-10-phenyl-7-azaspiro[4.5]decane-9-carbonitrile, its Al-methyl derivative and a series of aryl substituted compounds performed by Kirillov et al. has allowed to assign a configuration around C9C10 bond /hh of about 5 and /hh of 13 Hz have been found for the cis and tram compound, respectively. [Pg.228]

Purines, N-alkyl-N-phenyl-synthesis, 5, 576 Purines, alkylthio-hydrolysis, 5, 560 Mannich reaction, 5, 536 Michael addition reactions, 5, 536 Purines, S-alkylthio-hydrolysis, 5, 560 Purines, amino-alkylation, 5, 530, 551 IR spectra, 5, 518 reactions, 5, 551-553 with diazonium ions, 5, 538 reduction, 5, 541 UV spectra, 5, 517 Purines, N-amino-synthesis, 5, 595 Purines, aminohydroxy-hydrogenation, 5, 555 reactions, 5, 555 Purines, aminooxo-reactions, 5, 557 thiation, 5, 557 Purines, bromo-synthesis, 5, 557 Purines, chloro-synthesis, 5, 573 Purines, cyano-reactions, 5, 550 Purines, dialkoxy-rearrangement, 5, 558 Purines, diazoreactions, 5, 96 Purines, dioxo-alkylation, 5, 532 Purines, N-glycosyl-, 5, 536 Purines, halo-N-alkylation, 5, 529 hydrogenolysis, 5, 562 reactions, 5, 561-562, 564 with alkoxides, 5, 563 synthesis, 5, 556 Purines, hydrazino-reactions, 5, 553 Purines, hydroxyamino-reactions, 5, 556 Purines, 8-lithiotrimethylsilyl-nucleosides alkylation, 5, 537 Purines, N-methyl-magnetic circular dichroism, 5, 523 Purines, methylthio-bromination, 5, 559 Purines, nitro-reactions, 5, 550, 551 Purines, oxo-alkylation, 5, 532 amination, 5, 557 dipole moments, 5, 522 H NMR, 5, 512 pJfa, 5, 524 reactions, 5, 556-557 with diazonium ions, 5, 538 reduction, 5, 541 thiation, 5, 557 Purines, oxohydro-IR spectra, 5, 518 Purines, selenoxo-synthesis, 5, 597 Purines, thio-acylation, 5, 559 alkylation, 5, 559 Purines, thioxo-acetylation, 5, 559... [Pg.761]

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