39522-26-4

Basic information

• Product Name: 6-METHYL-2H-1,4-BENZOXAZIN-3(4H)-ONE
• Synonyms: BUTTPARK 35\07-22;6-METHYL-2H-1,4-BENZOXAZIN-3(4H)-ONE;6-METHYL-2H-BENZO[B][1,4]OXAZIN-3(4H)-ONE;6-METHYL-2H-1,4-BENZOXAZIN-3(4H)-ONE, 98 %;6-Methyl-2,4-dihydro-1,4-benzoxazin-3-one;6-Methyl-2H-1,4-benzoxazin-3(4H)-one 98%
• CAS NO: 39522-26-4
• Molecular Formula: C₉H₉NO₂
• Molecular Weight: 163.17
• Product Categories: API intermediates;Benzoxazines;Building Blocks;Heterocyclic Building Blocks;Building Blocks;Chemical Synthesis;Heterocyclic Building Blocks
• Mol File: 39522-26-4.mol
• Article Data: 21

Chemical Properties

• Melting Point: 207-209 °C(lit.)
• Boiling Point: 340.8°Cat760mmHg
• Flash Point: 159.9°C
• Appearance: /
• Density: 1.198g/cm³
• Vapor Pressure: 8.42E-05mmHg at 25°C
• Refractive Index: 1.555
• CAS DataBase Reference: 6-METHYL-2H-1,4-BENZOXAZIN-3(4H)-ONE(CAS DataBase Reference)
• NIST Chemistry Reference: 6-METHYL-2H-1,4-BENZOXAZIN-3(4H)-ONE(39522-26-4)
• EPA Substance Registry System: 6-METHYL-2H-1,4-BENZOXAZIN-3(4H)-ONE(39522-26-4)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-37/39
• WGK Germany: 3
• HazardClass: IRRITANT
• Hazardous Substances Data: 39522-26-4(Hazardous Substances Data)

Usage

General Description

6-Methyl-2H-1,4-benzoxazin-3(4H)-one, also referred to as 6-methyl-2H-benzo[b][1,4]oxazin-3(4H)-one, is an organic building block.

InChI:InChI=1/C9H9NO2/c1-6-2-3-8-7(4-6)10-9(11)5-12-8/h2-4H,5H2,1H3,(H,10,11)

Upstream product

• 119-33-5 4-methyl-2-nitrophenol 
• 105-36-2 ethyl bromoacetate 
• 16188-57-1 2-iodo-4-methylphenol 
• 79-07-2 Chloroacetamide 
• 95-84-1 3-amino-4-hydroxytoluene 
• 13359-20-1 2-(p-methylphenoxy)acetohydroxamic acid 
• 598-42-5 glycolamide 
• 95-75-0 3,4-Dichlorotoluene 
• 1248651-95-7 2-(2-chloro-4-methylphenoxy)acetamide 
• 106-44-5 p-cresol 
• 38768-63-7 methyl p-tolyloxyacetate 
• 615-74-7 2-chloro-5-methylphenol 
• 1247390-41-5 2-(4-methyl-2-nitrophenoxy)acetonitrile 
• 431994-40-0 (4-methyl-2-nitro-phenoxy)-acetic acid ethyl ester 

Downstream Products

• 62490-79-3 2-benzylidene-6-methyl-4H-benzo[1,4]oxazin-3-one 
• 105492-53-3 4-(Benzoylmethyl)-6-methyl-2H-1,4- benzoxazin-3-one 
• 105492-55-5 4-[2-(4-Chloro-phenyl)-2-oxo-ethyl]-6-methyl-4H-benzo[1,4]oxazin-3-one 
• 105492-56-6 4-[2-(4-Methoxy-phenyl)-2-oxo-ethyl]-6-methyl-4H-benzo[1,4]oxazin-3-one 
• 1245277-07-9 (Z)-6-methyl-2-(3,4,5-trimethoxybenzylidene)-2H-benzo[b][1,4]oxazin-3-(4H)-one 
• 1245276-82-7 (Z)-2,6-dibromo-4-{(6-methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-ylidene)methyl}phenyl acetate 
• 71472-57-6 6-methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine 
• 62490-70-4 2-benzylidene-4-(3-dimethylamino-propyl)-6-methyl-4H-benzo[1,4]oxazin-3-one 
• 96780-80-2 C₁₆H₁₆N₄OS 
• 96753-80-9 8-Methyl-2,4-dihydro-5-oxa-2,3,9b-triaza-cyclopenta[a]naphthalen-1-one 
• 104971-88-2 2-(4-Methoxy-phenyl)-8-methyl-4H-5-oxa-3,9b-diaza-cyclopenta[a]naphthalene 
• 104971-87-1 2-(4-Chloro-phenyl)-8-methyl-4H-5-oxa-3,9b-diaza-cyclopenta[a]naphthalene 
• 104971-86-0 8-Methyl-2-p-tolyl-4H-5-oxa-3,9b-diaza-cyclopenta[a]naphthalene 
• 104971-85-9 8-Methyl-2-phenyl-4H-5-oxa-3,9b-diaza-cyclopenta[a]naphthalene 

Relevant articles and documents

Intramolecular cyclization of N-hydroxy-2-phenoxyacetamides and 3-phenoxypropanamides

Abstract: A novel route for the preparation of 2H-1,4- benzoxazin-3(4H)one and 1,5 benzoxazepinones by intramolecular cyclization of N-hydroxy 2-phenoxyacetamide and N-hydroxy -3 phenoxypropanamide using PPA and Lewis acid has been discussed. Graphical abstract: [Figure not available: see fulltext. Caption: Preparation of 2H-1,4- benzoxazin-3(4H)one and 1,5 benzoxazepinones by electrophilic aromatic substitution from N-hydroxy 2-phenoxyacetamide and N-hydroxy -3 phenoxypropanamide and their acetyl and benzoyl derivatives using PPA and Lewis acids.]

Synthetic technology for preparing 1,4-benzoxazinone through microwave process

The invention relates to a preparation method for a benzoxazine compound. The method comprises the following steps: adding the compound shown as formula II, methyl alcohol and catalyst into a reactor; reacting under the existence of catalyst and alkali; and performing post-processing after ending the reaction, thereby acquiring the compound shown as formula I. In the formula, R group is selected from hydrogen, amino, nitro, C1-C6 alkyl, C1-C6 alkoxy and hydroxy; alkyl is selected from methyl, ethyl and isopropyl; alkoxy is selected from methoxy group, ethyoxyl and isopropoxy. The method is low in cost of raw materials, is safe and reliable, is completed under normal temperature and normal pressure and is simple in process.

New Approach to 1,4-Benzoxazin-3-ones by Electrochemical C?H Amination

1,4-Benzoxazin-3-ones are important structural motifs in natural products and bioactive compounds. Usually, the synthesis of benzoxazinones requires transition-metal catalysts and pre-functionalized substrates such as aryl halides. However, the anodic C?H