2-Amino-4-chloropyrimidine
-
2-Amino-4-chloropyrimidine
structure -
-
CAS No:
3993-78-0
-
Formula:
C4H4ClN3
-
Chemical Name:
2-Amino-4-chloropyrimidine
-
Synonyms:
NSC10872;NSC25184;AKOSBBS-00005838;CHLORO-ISO-CYTOSINE;4-CHLOROPYRIMIDIN-2-AMINE;4-Chloro-2-pyrimidinamine;2-Amino-4-chlor-pyrimidin;2-amine-4-chloropyrimidine;2-AMINO-4-CHLOROPYRIMIDINE;2-amino-4-chloropyrimidein
- Categories:
-
CAS No:
Characteristics
51.8
0.8
White Solid
1.4±0.1 g/cm3
155-160 °C (dec.)
314.6°C at 760 mmHg
144.1±25.7 °C
1.618
soluble in dimethyl sulfoxide.
-20°C Freezer, Under Inert Atmosphere
Safety Information
NONH for all modes of transport
3
36/37/38-41-37/38-22
26-36/37/39-36/39-60
Xi,Xn
Irritant
P261-P280-P305 + P351 + P338
H302-H315-H318-H335
|Danger|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P310, P312, P321, P330, P332+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 43 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2-Amino-4-chloropyrimidine Use and Manufacturing
To 2, 4-Dichloropyrimidine (1.0 g, 6.7 mmol) was added 28 percent w/v ammonium hydroxide solution (20 mL). The mixture was stirred overnight at ambient temperature then concentrated in vacuo. The residue was dry loaded and purified by FCC eluting with 2-10 percent EtOH in CHCI3 to afford 2-amino-4-chloropyrimidine and 2-chloro-4-aminopyrimidine. Yield: 2-amino-4-chloropyrimidine 200 mg, 23 percent; 2-chloro-4-aminopyrimidine 600 mg, 69 percent.: 2-Amino-4-chloropyrimidine (2) and 4-amino-2-chloropyrimidine (3) A suspension of 2, 4-dichloropyrimidine (7.45 g, 50.0 mmol) in ammonium hydroxide (25percent, 125 mL) is stirred at room temperature for 5 h. The appearance of the insoluble material changes from 'salt-like' to 'snow-like'. The precipitate is collected by filtration and dried in vacuo. The crude material is redissolved in MeOHiCHIn a three neck IL round bottom flask equipped with reflux condenser was added 2-amino- 4(3H)-pyrimidinone A.ll (10Og, 0.9 mol) (available from Toronto Research Chemicals) followed by POClExample 48 In a three neck 250 mL round bottom flask equipped with reflux condenser was added isocytosine (20 g, 0.18 mol) followed by phosphorus oxychloride (40 mL, 0.43 mol) at -5 °C and under an atmosphere of nitrogen. To this was cautiously added chlorosulfonic acid (4 mL, 0.06 mol). The solution was permitted to heat spontaneously to room temperature and then heated at 45 °C for 1 h. It was then heated cautiously at 90 °C for 4 h, before it was cooled to room temperature. The mixture was then cooled in an ice bath before it was pour onto 400 mL of ice water with vigorous stirring. Adjusted the pH to 7 with ammonia water (28percent by weight) (temperature was held below 20 °C). A tan colored solid was collected by filtration. The solid was dried to afford 4-chloro-2-pyrimidinamine (17 g, 73percent yield) as an off white solid. m.p. 166-167 °C.
Computed Properties
Molecular Weight:129.55
XLogP3:0.8
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:3
Exact Mass:129.0093748
Monoisotopic Mass:129.0093748
Topological Polar Surface Area:51.8
Heavy Atom Count:8
Complexity:77.7
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
Recommended Suppliers of 2-Amino-4-chloropyrimidine
-
![China]()
CN
5 YRS
Business licensedTrader Supplier of Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals,Biochemicals,Pharmaceuticals,Screening Compounds,Food Additives -
![China]()
CN
4 YRS
Business licensed Certified factoryManufactory Supplier of Active Pharm Ingredients,Chemical Catalyst,Pharmaceutical Intermediates,Flavors and Fragrances,Agrochemicals,Chemical Pesticides,Organic Intermediates,OLED IntermediatesInquiryCAS No.: 3993-78-0Grade: Pharmaceutical GradeContent: 99% -
![China]()
CN
5 YRS
Business licensedTrader Supplier of Peptides,Chemicals,API,AdditivesInquiryCAS No.: 3993-78-0Grade: Pharmaceutical GradeContent: 99% -
![China]()
CN
4 YRS
Business licensedTrader Supplier of Semaglutide,Tirzepatide,API,EnzymeInquiryCAS No.: 3993-78-0Grade: Pharmaceutical GradeContent: 99.5%
Learn More Other Chemicals
-
2-AMino-4-chloropyriMidine
399-78-0
-
(2E)-3-(1-METHYL-1H-PYRROL-2-YL)ACRYLIC ACID
51485-76-8
-
Benadryl N-oxide hydrochloride
13168-00-8
-
6-CHLORO-3-IODO-IMIDAZO[1,2-A]PYRIDINE Formula
885275-59-2
-
(2-Bromophenyl)diphenylphosphine Formula
62336-24-7
-
1-Morpholinocyclopentene Formula
936-52-7
-
4-[2-(Boc-amino)ethoxy]-benzoic acid Structure
168892-66-8
-
3-amino-5-bromopyridine-2-carboxylic acid Structure
870997-85-6
-
What is 2-Amino-6-methylpyridine
1824-81-3
-
What is 3-Bromo-2-methylthiophene
30319-05-2