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Home > Encyclopedia > 2-Amino-4(1H)-quinazolinone

2-Amino-4(1H)-quinazolinone

2-Amino-4(1H)-quinazolinone structure

2-Amino-4(1H)-quinazolinone 

structure
  • CAS No:

    20198-19-0

  • Formula:

    C8H7N3O

  • Chemical Name:

    2-Amino-4(1H)-quinazolinone

  • Synonyms:

    4(1H)-Quinazolinone,2-amino-;4(3H)-Quinazolinone,2-amino-;4-Quinazolinol,2-amino-;4(1H)-Quinazolinone,2,3-dihydro-2-imino-;2-Amino-4(1H)-quinazolinone;2-Amino-4-quinazolinone;2-Amino-4-hydroxyquinazoline;2-Amino-4-quinazolone;2-Amino-4(3H)-quinazolinone;5,8-dideazapterin;NSC 174024;NSC 51782;2-Amino-1H-quinazolin-4-one;2-Amino-3,4-dihydroquinazolin-4-one;2-Amino-3H-quinazolin-4-one;2-Aminoquinazolin-4-ol;100643-18-3;1791-46-4

  • Categories:

    Pharmaceutical Intermediates  >  Bulk Drug Intermediates

Description

2-imino-1,2,3,4-tetrahydroquinazolin-4-one is a member of the class of quinazolines that is 1,2,3,4-tetrahydroquinazoline in which the hydrogens at positions 2 and 4 have been replaced by imino and oxo groups, respectively.

2-Amino-4(1H)-quinazolinone Basic Attributes

161.16

161.16

174024|51782

DTXSID60287618

2933990090

Characteristics

67.5

0.6

1.49g/cm3

315 °C (decomp)

358.8°C at 760 mmHg

170.8ºC

1.734

2.48E-05mmHg at 25°C

Safety Information

22

Xn

|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

2-Amino-4(1H)-quinazolinone Use and Manufacturing

1.00 g (4.97mmol) of 2-bromobenzoic acid 44, 2.00 g (9.95 mmol) of guanidine hydrochloride, 6.48 g (19.9 mmol) of cesium carbonate and 95 mg (0.497mmol) of copper(I) iodide were dissolved in 20 ml of abs. DMF and stirred at 110 °C for 24 h. The solvent was distilled off in vacuo and the residue filtered through a short pad of silica gel using methanol as eluent. After recrystallization from ethanol 717 mg (52percent) of 2-aminoquinazolone 10 were obtained as a colorless solid. Mp.: >300°C. A. A.

Computed Properties

Molecular Weight:161.16
XLogP3:0.1
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Exact Mass:161.058911855
Monoisotopic Mass:161.058911855
Topological Polar Surface Area:67.5
Heavy Atom Count:12
Complexity:237
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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