3-CYANOCHROMONE

Base Information

• Chemical Name: 3-CYANOCHROMONE
• CAS No.: 50743-17-4
• Molecular Formula: C10H5NO2
• Molecular Weight: 171.155
• Hs Code.: 29329990
• Mol file: 50743-17-4.mol

Synonyms:3-Cyanochromone;4-Oxo-4H-1-benzopyran-3-carbonitrile;4-Oxo-4H-benzopyran-3-carbonitrile;4-Oxo-4H-chromene-3-carbonitrile;4-oxochromene-3-carbonitrile;4H-1-benzopyran-3-carbonitrile, 4-oxo-;Chromone-3-carbonitrile;

Chemical Property of 3-CYANOCHROMONE

Chemical Property:

• Appearance/Colour: light yellow crystalline powder
• Vapor Pressure: 0.0043mmHg at 25°C
• Melting Point: 174-176 °C(lit.)
• Refractive Index: 1.621
• Boiling Point: 278.3 °C at 760 mmHg
• Flash Point: 119.5 °C
• PSA: 54.00000
• Density: 1.34 g/cm³
• LogP: 1.66468
• Storage Temp.: Sealed in dry,Room Temperature

Purity/Quality:

98%,99%, ^*data from raw suppliers

3-Cyanochromone ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi；Xn
• Hazard Codes: Xn,Xi,T
• Statements: 36/37/38-20/21/22-25-20/21
• Safety Statements: 36/37/39-26-36-45-36/37-24/25

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Uses: 3-Cyanochromone may be used in the syntheses of following: 2-aminochromone-3-carboxamide3-amino-4H-chromeno[3,4-d]isoxazol-4-one 3-(diaminomethylene)chroman-2,4-dione functionalized novel spirobenzofuranones6H-bis-[1]-benzopyrano[2,3-b:3′,4′-e]pyridin-8(8H)ones and 3-(2′-hydroxybenzoyl)-5H-[1]benzopyrano[4,3-b]pyridine

Technology Process of 3-CYANOCHROMONE

There total 7 articles about 3-CYANOCHROMONE which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 85.0%

benzonitrile oxide (873-67-6) + 3-cyano-4H-1-benzopyran-4-thione (156544-47-7) → 4-oxo-4H-1-benzopyran-3-carbonitrile (50743-17-4) + phenyl isothiocyanate (103-72-0)

Guidance literature:

With triethylamine; In chloroform; at 0 ℃; for 3h;

Reference yield:

3-Formylchromone (17422-74-1) → 4-oxo-4H-1-benzopyran-3-carbonitrile (50743-17-4) + (2-hydroxyphenyl)-(1,2-oxazol-4-yl)methanone (53658-17-6)

Guidance literature:

With hydrogenchloride; hydroxylamine hydrochloride; In ethanol;

DOI:10.1016/S0040-4039(01)82441-2

Reference yield:

N-methyl-α-phenylnitrone (3376-23-6) + 3-cyano-4H-1-benzopyran-4-thione (156544-47-7) → 4-oxo-4H-1-benzopyran-3-carbonitrile (50743-17-4) + N-methylthiobenzamide (5310-14-5)

Guidance literature:

In benzene; for 40h; Yield given; Heating;

upstream raw materials:

3-Formylchromone

benzonitrile oxide

3-cyano-4H-1-benzopyran-4-thione

N-Benzylidenebenzylamine N-oxide

Downstream raw materials:

2-aminochromone-3-carboxaldehyde oxime

4-(o-hydroxybenzoyl)-pyrazolon-5

4-(o-hydroxybenzoyl)-pyrazolone-5

2-amino-3-[(2-phenylhydrazinylidene)methyl]chromone

Refernces

• 1、 Castellani, Carla Bisi,Carugo, Oliviero,Sardone, Nicola,Invernizzi, Anna Gamba. "Reactions of 4-Oxo-4H-1-benzopyran-3-carbaldehyde Oxime Assisted by Lanthanide(III) Cations. Roles of the Ln3+ Size, the Counterion and the Solvent.". . p. 2212 - 2226. Retrieved 2007/10/02.