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7139-02-8

Basic Information
CAS No.: 7139-02-8
Name: 2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine
Article Data: 8
Molecular Structure:
Molecular Structure of 7139-02-8 (2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine)
Formula: C16H20 Cl2 N6
Molecular Weight: 367.281
Synonyms: Pyrimido[5,4-d]pyrimidine,2,6-dichloro-4,8-dipiperidino- (6CI,7CI,8CI)
EINECS: 230-437-4
Density: 1.386 g/cm3
Melting Point: 242-250oC
Boiling Point: 504.1oC at 760mmHg
Flash Point: 258.7oC
PSA: 58.04000
LogP: 3.83720
Synthetic route
110-89-4

piperidine

32980-71-5

2,4,6,8-Tetrachloro-pyrimido[5,4-d]pyrimidine

7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
With copper(l) iodide; caesium carbonate In nitrobenzene at 180℃; for 16h; Inert atmosphere;95%
In tetrahydrofuran at 25℃;93%
Substitution;
In tetrahydrofuran at 0 - 5℃; for 0.333333h;
In tetrachloromethane; acetone at 30℃; for 1h;

C30H34N6O6S2

7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
With thionyl chloride; triethylamine for 0.133333h; Time; Microwave irradiation;93.5%

1,5-dihydropyrimido[5,4-d]pyrimidine-2,4,6,8-(3H,7H)-tetrone

7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: aq. NaOH / 0.33 h / Heating
1.2: 39 percent / PCl5; POCl3 / 8 h / Heating
2.1: 93 percent / tetrahydrofuran / 25 °C
View Scheme
6713-54-8

2,4,6,8-tetrahydroxypyrimidine-[5,4-d]pyrimidine

7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: thionyl chloride / 1,4-dioxane / 1 h
1.2: 1.5 h / Darkness
2.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
Multi-step reaction with 2 steps
1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
2: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
626-48-2

6-Methyluracil

7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: 2,2'-azobis(isobutyronitrile); cobalt(II) acetate; acetic acid; oxygen / 15 h / 80 °C
2.1: sodium hydroxide / water / 3 h
2.2: 25 - 45 °C / Inert atmosphere
3.1: copper; hydrogenchloride / water / 13 h / 40 °C / Inert atmosphere
4.1: sodium hydroxide / water / 4 h / 100 °C
5.1: thionyl chloride / 1,4-dioxane / 1 h
5.2: 1.5 h / Darkness
6.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
Multi-step reaction with 6 steps
1.1: sodium hydroxide; water; oxygen / 95 °C
2.1: nitric acid; sulfuric acid / 1 h / 10 - 30 °C
3.1: sodium dithionite / water / 0.5 h / 35 °C
4.1: 0.33 h / 100 °C
4.2: 1 h / 90 - 100 °C
4.3: 0.5 h / 60 °C / pH 4
5.1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
6.1: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
65-86-1

orotic acid

7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: sodium hydroxide / water / 3 h
1.2: 25 - 45 °C / Inert atmosphere
2.1: copper; hydrogenchloride / water / 13 h / 40 °C / Inert atmosphere
3.1: sodium hydroxide / water / 4 h / 100 °C
4.1: thionyl chloride / 1,4-dioxane / 1 h
4.2: 1.5 h / Darkness
5.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
17687-24-0

5-nitroorotic acid

7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: copper; hydrogenchloride / water / 13 h / 40 °C / Inert atmosphere
2.1: sodium hydroxide / water / 4 h / 100 °C
3.1: thionyl chloride / 1,4-dioxane / 1 h
3.2: 1.5 h / Darkness
4.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
Multi-step reaction with 4 steps
1.1: sodium dithionite / water / 0.5 h / 35 °C
2.1: 0.33 h / 100 °C
2.2: 1 h / 90 - 100 °C
2.3: 0.5 h / 60 °C / pH 4
3.1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
4.1: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
7164-43-4

5-amino-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid

7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: sodium hydroxide / water / 4 h / 100 °C
2.1: thionyl chloride / 1,4-dioxane / 1 h
2.2: 1.5 h / Darkness
3.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
Multi-step reaction with 3 steps
1.1: 0.33 h / 100 °C
1.2: 1 h / 90 - 100 °C
1.3: 0.5 h / 60 °C / pH 4
2.1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
3.1: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
154-85-8

orotic acid sodium salt

7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: nitric acid; sulfuric acid / 1 h / 10 - 30 °C
2.1: sodium dithionite / water / 0.5 h / 35 °C
3.1: 0.33 h / 100 °C
3.2: 1 h / 90 - 100 °C
3.3: 0.5 h / 60 °C / pH 4
4.1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
5.1: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

100-79-8

(R,S)-2,2-dimethyl-1,3-dioxolane-4-methanol

774539-20-7

2,6-bis-(2,2-dimethyl-[1,3]dioxolan-4-ylmethoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: (R,S)-2,2-dimethyl-1,3-dioxolane-4-methanol With sodium hydride In tetrahydrofuran at 60℃; for 0.0833333h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
99%
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    Product name: 2,6-Dichloro-4,8-Dipiperidinopyrimidino[5,4-d]pyrimidine CAS No.: 7139-02-8 Molecule Formula:C16H20Cl2N6 Molecule Weight:367.28 Purity: 99.0% Package: 25kg/drum Description:White crystalline powder Manufacture Standards:

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