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134628-42-5

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Basic Information
CAS No.: 134628-42-5
Name: PIPERAZINE-2,2,3,3,5,5,6,6-D8
Molecular Structure:
Molecular Structure of 134628-42-5 (PIPERAZINE-2,2,3,3,5,5,6,6-D8)
Formula: C4H2D8N2
Molecular Weight: 94.0733
Synonyms: PIPERAZINE-2,2,3,3,5,5,6,6-D8
PSA: 24.06000
LogP: -0.16320
Related products
Synthetic route
134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

1054624-86-0

2-chloro-N-(2,6-di(d3-methyl)phenyl)-2,2-d2-acetamide

1054624-87-1

N-(2,6-di(d3-methyl)phenyl)-2-(d8-piperazin-1-yl)-2,2-d2-acetamide

Conditions
ConditionsYield
Stage #1: piperazine-2,2,3,3,5,5,6,6-d8; 2-chloro-N-(2,6-di(d3-methyl)phenyl)-2,2-d2-acetamide In ethyl [2]alcohol for 3h; Heating / reflux;
Stage #2: With ammonia In ethyl [2]alcohol; water		99%
134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

100-00-5

4-chlorobenzonitrile

C10H5(2)H8N3O2

Conditions
ConditionsYield
In diethylene glycol dimethyl ether at 100℃; for 6h;80%
942271-60-5

tert-butyl 4-fluoro-2-nitrobenzoate

134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

C15H13(2)H8N3O4

Conditions
ConditionsYield
In water; N,N-dimethyl-formamide at 20℃; for 5h;74.5%
134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

1613192-04-3

1-[3-[(2-amino-6-fluoro-pyrazolo[1,5-a]pyrimidine-3-carbonyl)amino]-5-fluoro-4-pyridyl]piperidine-4-carboxylic acid hydrochloride

2-amino-6-fluoro-N-(5-fluoro-4-(4-(2,2,3,3,5,5,6,6-octadeutero-piperazine-1-carbonyl)piperidin-1-yl)-3-pyridyl)pyrazolo[1,5-a]pyrimidine-3-carboxamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 20℃; for 18h;48%
89793-12-4

ethyl 2-chloropyrimidine-5-carboxylate

134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

24424-99-5

di-tert-butyl dicarbonate

C16H16(2)H8N4O4

Conditions
ConditionsYield
Stage #1: ethyl 2-chloropyrimidine-5-carboxylate; piperazine-2,2,3,3,5,5,6,6-d8 With N-ethyl-N,N-diisopropylamine In 1,4-dioxane at 20℃; for 3h; Cooling with ice; Inert atmosphere;
Stage #2: di-tert-butyl dicarbonate In 1,4-dioxane for 1h; Inert atmosphere;		47.4%
...Expand
75-75-2

methanesulfonic acid

134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

4-(chloromethyl-d2)-N-(4-(methyl-d3)-3-(4-(pyridin-3-yl)pyrimidin-2-ylamino)phenyl)benzamide

N-(4-(methyl-d3)-3-(4-(pyridin-3-yl)pyrimidin-2-ylamino)phenyl)-4-((piperazin-1-yl-d8)methyl-d2)benzamide bis-methanesulfonic acid salt

Conditions
ConditionsYield
Stage #1: piperazine-2,2,3,3,5,5,6,6-d8; 4-(chloromethyl-d2)-N-(4-(methyl-d3)-3-(4-(pyridin-3-yl)pyrimidin-2-ylamino)phenyl)benzamide In dichloromethane; acetonitrile Reflux;
Stage #2: With [D]-sodium hydroxide In methanol; chloroform; water-d2
Stage #3: methanesulfonic acid In dichloromethane		43%
...Expand
75-75-2

methanesulfonic acid

134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

1207619-83-7

4-(chloromethyl-d2)-N-(4-methyl-3-(4-(pyridin-3-yl)pyrimidin-2-ylamino)phenyl)benzamide

N-(4-methyl-3-(4-(pyridin-3-yl)pyrimidin-2-ylamino)phenyl)-4-((piperazin-1-yl-d8)methyl-d2)benzamide bis-methanesulfonic acid salt

Conditions
ConditionsYield
Stage #1: piperazine-2,2,3,3,5,5,6,6-d8; 4-(chloromethyl-d2)-N-(4-methyl-3-(4-(pyridin-3-yl)pyrimidin-2-ylamino)phenyl)benzamide In dichloromethane; acetonitrile Reflux;
Stage #2: With [D]-sodium hydroxide In methanol; chloroform; water-d2
Stage #3: methanesulfonic acid In acetone		33%
...Expand
134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

134-83-8

1-chloro-4-(chloro(phenyl)methyl)benzene

1-[(4-chlorophenyl)phenylmethyl]piperazine-2,2,3,3,5,5,6,6-d8

Conditions
ConditionsYield
With potassium carbonate In acetonitrile at 85℃; Sealed tube;32.1%
134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

1-(3-[D3]methoxy-4-nitrophenyl)piperidin-4-one

C16H13(2)H11N4O3

Conditions
ConditionsYield
With titanium(IV) isopropylate at 20℃;25.4%
134628-42-5

piperazine-2,2,3,3,5,5,6,6-d8

1006717-19-6

d8-furan-2-yl-piperazin-1-yl-methanone

Conditions
ConditionsYield
Stage #1: 2-furanoic acid With N-Bromosuccinimide; triphenylphosphine In dichloromethane at 0℃; for 0.25h;
Stage #2: piperazine-2,2,3,3,5,5,6,6-d8 With pyridine In dichloromethane at 20℃;
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