Chemistry Heterocyclic Building Blocks Pyrimidines 1,4,5,6-Tetrahydropyrimidine

1,4,5,6-Tetrahydropyrimidine

Nucleophilic Substitution Reactions: The nitrogen atoms in the pyrimidine ring can undergo nucleophilic substitution reactions. For example, they can react with alkyl halides or other electrophiles to form substituted tetrahydropyrimidines. Acylation: 1,4,5,6-tetrahydropyrimidine can undergo acylation reactions, where acyl groups are added to the nitrogen atoms. This can be achieved using acyl chlorides or anhydrides in the presence of a suitable base. Ring-Opening Reactions: Depending on the reaction conditions, the tetrahydropyrimidine ring can undergo ring-opening reactions. For instance, under acidic conditions, it may open up to form open-chain compounds. Reduction: The double bonds in the pyrimidine ring can be reduced to form a fully saturated ring. This can be achieved using reducing agents such as hydrogen and a catalyst. Oxidation: The hydrogen atoms on the tetrahydropyrimidine ring can be oxidized to form various functional groups. For example, oxidation with strong oxidizing agents like potassium permanganate can lead to the formation of diols or other oxidized products. Cyclization Reactions: Depending on the reagents and conditions, 1,4,5,6-tetrahydropyrimidine can participate in various cyclization reactions to form different heterocyclic compounds. Condensation Reactions: It can participate in condensation reactions with other compounds, leading to the formation of more complex molecules. Metal-Catalyzed Reactions: Transition metal catalysts can be used to facilitate various reactions involving 1,4,5,6-tetrahydropyrimidine, such as cross-coupling reactions, hydrogenation, and more.

Further Reading:

Framework+−

(R)-7-(Tetrahydrofuran-2-Yl)-7H-Pyrrolo[2,3-D]Pyrimidine (R)-N-(Piperidin-3-Yl)-7H-Pyrrolo[2,3-D]Pyrimidin-4-Amine 1,4,5,6-Tetrahydropyrimidine 1-(3-Fluorotetrahydrofuran-2-Yl)Pyrimidin-2(1H)-One 1-(5-(Hydroxymethyl)Tetrahydrofuran-2-Yl)Pyrimidine-2,4(1H,3H)-Dione 1-(Pyrimidin-2-Yl)Ethan-1-One 1-(Pyrimidin-4-Yl)Ethan-1-One 1-(Tetrahydrofuran-2-Yl)Pyrimidin-2(1H)-One 1H-Pyrazolo[3,4-D]Pyrimidin-4-Amine 1H-Pyrazolo[4,3-D]Pyrimidine 2,4,5-Trichloropyrimidine 2,4,6-Trichloropyrimidine 2,4,6-Triphenylpyrimidine 2,4-Dichloro-6-Methylpyrimidine 2,4-Dichloropyrimidin-5-Amine 2,4-Dimethoxypyrimidine 2,4-Dimethylpyrimidine 2-(1H-Pyrazol-1-Yl)Pyrimidine 2-(Chloromethyl)Pyrimidine 2-(Methylsulfonyl)Pyrimidine 2-(Methylthio)Pyrimidin-4-Amine 2-(Methylthio)Pyrimidine 2-(Piperazin-1-Yl)Pyrimidine 2-(Piperidin-1-Yl)Pyrimidine 2-(Propylthio)Pyrimidine 2-(Pyridin-2-Yl)Pyrimidine 2-(Pyrrolidin-1-Yl)Pyrimidine 2-(Trifluoromethyl)Pyrimidine 2-Aminopyrimidin-4(3H)-One 2-Bromopyrimidine 2-Chloro-4-(Trifluoromethyl)Pyrimidine 2-Chloro-4-Methoxypyrimidine 2-Chloro-4-Methylpyrimidine 2-Chloro-4-Phenylpyrimidine 2-Chloro-5-Fluoropyrimidine 2-Chloro-5-Methylpyrimidine 2-Chloro-5-Nitropyrimidine 2-Chloro-7H-Pyrrolo[2,3-D]Pyrimidine 2-Chloropyrimidin-4-Amine 2-Cyclopropylpyrimidine 2-Ethoxypyrimidine 2-Ethylpyrimidine 2-Fluoropyrimidine 2-Hydrazineylpyrimidine 2-Iodopyrimidine 2-Methoxypyrimidin-4-Amine 2-Methoxypyrimidine 2-Methylpyrimidin-4-Amine 2-Methylpyrimidin-4-Ol 2-Phenoxypyrimidine 2-Phenylpyrimidin-5-Amine 3-Methylpyrimidin-4(3H)-One 4,5-Dichloropyrimidine 4,6-Dichloro-2-(Methylthio)Pyrimidine 4,6-Dichloro-2-Methylpyrimidine 4,6-Dichloropyrimidin-2-Amine 4,6-Dichloropyrimidine 4,6-Diphenylpyrimidine 4-(Dimethoxymethyl)Pyrimidine 4-(Piperazin-1-Yl)Pyrimidine 4-(Piperidin-1-Yl)Pyrimidine 4-(Pyridin-3-Yl)Pyrimidine 4-(Pyrimidin-2-Yl)Morpholine 4-(Pyrimidin-4-Yl)Morpholine 4-(Trifluoromethyl)Pyrimidin-2-Amine 4-(Trifluoromethyl)Pyrimidine 4-Amino-1-(Tetrahydrofuran-2-Yl)Pyrimidin-2(1H)-One 4-Bromopyrimidine 4-Chloro-2-(Methylthio)Pyrimidine 4-Chloro-2-Methoxypyrimidine 4-Chloro-2-Phenylpyrimidine 4-Chloro-5-Fluoro-2-Methylpyrimidine 4-Chloro-5-Iodopyrimidine 4-Chloro-5-Methoxypyrimidine 4-Chloro-5-Methylpyrimidine 4-Chloro-6-Methoxypyrimidine 4-Chloropyrimidin-2-Amine 4-Chloropyrimidin-5-Amine 4-Chloropyrimidine-5-Carbonitrile 4-Ethoxypyrimidine 4-Fluoropyrimidine 4-Iodopyrimidine 4-Methoxy-2-Methylpyrimidine 4-Methoxypyrimidin-2-Amine 4-Methoxypyrimidine 4-Methyl-2-(Methylthio)Pyrimidine 4-Methylpyrimidin-2-Amine 4-Methylpyrimidine 4-Phenoxypyrimidine 4-Phenylpyrimidin-2-Amine 5,6,7,8-Tetrahydropyrido[3,4-D]Pyrimidine 5,6,7,8-Tetrahydropyrido[4,3-D]Pyrimidine 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)Pyrimidine 5-(Benzyloxy)Pyrimidine 5-Benzylpyrimidine 5-Bromo-1-(Tetrahydrofuran-2-Yl)Pyrimidine-2,4(1H,3H)-Dione 5-Bromo-2-(Methylthio)Pyrimidine 5-Bromo-2-Chloropyrimidine 5-Bromo-2-Methylpyrimidine 5-Bromo-4-Chloropyrimidine 5-Bromo-7H-Pyrrolo[2,3-D]Pyrimidine 5-Bromopyrimidin-4(3H)-One 5-Chloropyrimidin-4(3H)-One 5-Chloropyrimidine 5-Chloropyrimidine-2,4(1H,3H)-Dione 5-Ethylpyrimidine 5-Fluoro-1-(Tetrahydrofuran-2-Yl)Pyrimidin-2(1H)-One 5-Fluoro-1-(Tetrahydrofuran-2-Yl)Pyrimidine-2,4(1H,3H)-Dione 5-Fluoropyrimidin-4(3H)-One 5-Fluoropyrimidine 5-Fluoropyrimidine-2,4(1H,3H)-Dione 5-Iodo-7H-Pyrrolo[2,3-D]Pyrimidine 5-Iodopyrimidine 5-Methylpyrimidine 5-Phenylpyrimidine 5H-Pyrrolo[3,2-D]Pyrimidine 6,7-Dihydro-5H-Cyclopenta[D]Pyrimidine 6,7-Dihydro-5H-Pyrrolo[3,4-D]Pyrimidine 6-Chloro-1H-Pyrazolo[3,4-D]Pyrimidine 6-Chloropyrimidin-4-Amine 7-(Phenylsulfonyl)-7H-Pyrrolo[2,3-D]Pyrimidine 7H-Pyrrolo[2,3-D]Pyrimidin-2-Amine 7H-Pyrrolo[2,3-D]Pyrimidin-4-Amine [1,2,4]Triazolo[1,5-A]Pyrimidine Ethyl 4-Chloropyrimidine-5-Carboxylate Ethyl Pyrazolo[1,5-A]Pyrimidine-3-Carboxylate Ethyl Pyrimidine-4-Carboxylate Ethyl Pyrimidine-5-Carboxylate Imidazo[1,2-C]Pyrimidine Methyl Pyrimidine-2-Carboxylate Methyl Pyrimidine-4-Carboxylate Methyl Pyrimidine-5-Carboxylate N,N-Dimethylpyrimidin-2-Amine N-(9-((2R,5S)-5-((Trityloxy)Methyl)Tetrahydrofuran-2-Yl)-9H-Purin-6-Yl)Benzamide N-Benzyl-9H-Purin-6-Amine N-Cyclopropylpyrimidin-2-Amine N-Methyl-N-(4-Phenylpyrimidin-2-Yl)Methanesulfonamide N-Methylpyrimidin-2-Amine N-Methylpyrimidin-4-Amine N-Phenyl-4-(Pyridin-3-Yl)Pyrimidin-2-Amine N-Phenylpyrimidin-2-Amine N-Phenylpyrimidin-4-Amine N2,N4-Diphenylpyrimidine-2,4-Diamine Pyrido[2,3-D]Pyrimidine Pyrido[3,2-D]Pyrimidine Pyrido[3,4-D]Pyrimidine Pyrimidin-2-Ol Pyrimidin-2-Ylmethanamine Pyrimidin-2-Ylmethanol Pyrimidin-4-Amine Pyrimidin-4-Ol Pyrimidin-5-Amine Pyrimidin-5-Ol Pyrimidin-5-Ylboronic Acid Pyrimidine-2,4-Diamine Pyrimidine-2-Carbonitrile Pyrimidine-2-Carboxylic Acid Pyrimidine-2-Thiol Pyrimidine-4,6(1H,5H)-Dione Pyrimidine-4-Carbonitrile Pyrimidine-4-Carboxylic Acid Pyrimidine-5-Carbaldehyde Pyrimidine-5-Carbonitrile Pyrimidine-5-Carboxylic Acid Tetrahydropyrimidin-2(1H)-One Thiazolo[5,4-D]Pyrimidine Thieno[2,3-D]Pyrimidine Thieno[3,2-D]Pyrimidine

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Allylpyrimidine Amino-Pyrazolopyrimidine Amino-Pyrrolopyrimidine Amino-Triazolopyrimidine Aminopyrimidine Benzofuranopyrimidine Bipyrimidine Bromo-Pyrazolopyrimidine Bromo-Pyrrolopyrimidine Bromo-Trifluoromethyl-Pyrimidine Bromopyrimidine Butylpyrimidine Chloro-Pyrazolopyrimidine Chloro-Pyrrolopyrimidine Chloro-Triazolopyrimidine Chloro-Trifluoromethyl-Pyrimidine Chloropyrimidine Cyclopropylpyrimidine Diaminopyrimidine Dibromopyrimidine Dichloropyrimidine Difluoropyrimidine Dihydropyrimidine Dihydroxy-Pyrimidine Dihydroxypyrimidine Dimethoxypyrimidine Dimethylpyrimidine Dioxaborolan-Pyrimidine Diphenylpyrimidine Ethoxypyrimidine Ethylpyrimidine Fluoropyrimidine Furanopyrimidine Hydrazinylpyrimidine Hydroxy-Pyrazolopyrimidine Hydroxypyrimidine Imidazolyl-Pyrimidine Imidazopyrimidine Iodo-Pyrrolopyrimidine Iodopyrimidine Isopropoxypyrimidine Isopropylpyrimidine Mercaptopyrimidine Methoxypyrimidine Methyl-Triazolopyrimidine Methylpyrimidine Methyluracil Nitropyrimidine Phenoxypyrimidine Phenylpyrimidine Piperazin-Pyrimidin Piperidine-Pyrimidine Propylpyrimidine Pyrazolo-Pyrimidine Pyrazolopyrimid-One Pyrazolopyrimidine Pyridin-Pyrimidin Pyridopyrimidin Pyrimidinamine Pyrimidine-Boronic Acid Pyrimidine-Boronic Acid/Ester Pyrimidine-Boronic-Acid Pyrimidine-Hydrochloride Pyrimidine-Methanol Pyrimidine-Morpholine Pyrimidine-Nitrile Pyrimidine-Pyrazole Pyrimidinecarbonitrile Pyrimidinecarboxylate Pyrimidinecarboxylic Pyrimidinone Pyrimido-Indole Pyrrolidine-Pyrimidine Pyrrolopyrimidin-One Pyrrolopyrimidine Pyrrolopyrimidine-Carboxylate Pyrrolopyrimidine-Carboxylic-Acid Tetrahydrofuran-Pyrimidine Tetrahydropyrimidine Tetraoxatetradecan Thiazo-Pyrimidine Thiazolopyrimidine Thiazopyrimidine Thienopyrimidine Triazolopyrimidine Trichloropyrimidine Trifluoromethyl-Phenyl-Pyrimidin Trifluoromethyl-Pyrimidin-Amine Trifluoromethyl-Pyrimidin-Ol Trifluoromethylpyrimidine Vinylpyrimidine

By Parent Nucleus+−

Aromatic Heterocycles Azetidines Benzimidazoles Imidazoles Indazoles Indoles Indolines Morpholines Piperazines Piperidines Pyrazoles Pyridines Pyrrolidines Tetrahydroisoquinolines Thiazoles Thiophenols Triazoles

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Heterocyclic related+−

pyr

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    1,2-Dimethyl-1,4,5,6-tetrahydropyrimidine

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    (1-Methyl-1,4,5,6-tetrahydropyrimidin-2-yl)methanamine dihydrochloride

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