Chroman-4-One Oxime

Base Information

• Chemical Name: Chroman-4-One Oxime
• CAS No.: 24541-01-3
• Molecular Formula: C9H9NO2
• Molecular Weight: 163.176
• Hs Code.: 2932999099
• Mol file: 24541-01-3.mol

Synonyms:3,4-Dihydro-2H-1,4-benzothiazin;2H-1,4-Benzothiazine,3,4-dihydro;chroman-4-one-oxime;2H-3,4-dihydro-1,4-benzothiazine;4-chromanone oxime;2,3-dihydrobenzo-1,4-thiazine;4-Chromanonoxim;2,3-dihydro-4H-1-benzopyran-4-one oxime;Chroman-4-on-oxim;2,3-dihydro-4H-1,4-benzothiazine;

Chemical Property of Chroman-4-One Oxime

Chemical Property:

• Melting Point: 138 °C
• Boiling Point: 323.7±22.0 °C(Predicted)
• PKA: 10.83±0.20(Predicted)
• PSA: 41.82000
• Density: 1.26±0.1 g/cm3(Predicted)
• LogP: 1.64740

Purity/Quality:

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

N-(3,4-dihydro-2H-1-benzopyran-4-ylidene)hydroxylamine ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Chroman-4-One Oxime

There total 11 articles about Chroman-4-One Oxime 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: 100.0%

2,3-dihydro-4H-1-benzopyran-4-one (491-37-2) → chroman-4-one oxime (24541-01-3,535935-39-8)

Guidance literature:

With hydroxylamine hydrochloride; triethylamine; In methanol; at 20 ℃; for 16h;

Reference yield: 99.0%

2,3-dihydro-4H-1-benzopyran-4-one (491-37-2) + hydroxylamine hydrochloride (5470-11-1) → (4E)-2,3-dihydro-4H-chromen-4-one oxime (24541-01-3,535935-39-8)

Guidance literature:

With sodium acetate; In ethanol; water;

Reference yield: 94.0%

2,3-dihydro-4H-1-benzopyran-4-one (491-37-2) → (4E)-2,3-dihydro-4H-chromen-4-one oxime (24541-01-3,535935-39-8)

Guidance literature:

With pyridine; hydroxylamine hydrochloride; for 1.5h;

DOI:10.3390/molecules25061265

upstream raw materials:

2,3-dihydro-4H-1-benzopyran-4-one

2-(2-bromoethoxy)benzaldehyde

4-hydroxychroman

hydroxylamine hydrochloride

Downstream raw materials:

2,3,4,5-tetrahydro-1,5-benzoxazepine

2,3-dihydro-1,4-benzoxazepin-5(4H)-one

2,3,4,5-tetrahydro-1,5-benzoxazepin-4-one

chroman-4-amine