3H-2-Oxa-1H-phenalene-1-one

Base Information

• Chemical Name: 3H-2-Oxa-1H-phenalene-1-one
• CAS No.: 518-86-5
• Molecular Formula: C12H8O2
• Molecular Weight: 184.194
• Hs Code.: 2932999099
• Mol file: 518-86-5.mol

Synonyms:Naphthalide;1,8-Naphthalide;Naphthalid;Benzo[de]isochromen-1(3H)-one;Perinaphthalide;1H,3H-Naphtho[1,8-cd]pyran-1-one;1H,3H-Benzo[de]isochromen-1-one;

Chemical Property of 3H-2-Oxa-1H-phenalene-1-one

Chemical Property:

• Vapor Pressure: 7.12E-07mmHg at 25°C
• Boiling Point: 408.2°Cat760mmHg
• Flash Point: 172.2°C
• PSA: 26.30000
• Density: 1.313g/cm³
• LogP: 2.51020

Purity/Quality:

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

3-Oxatricyclo[7.3.1.05,13]trideca-1(12),5(13),6,8,10-pentaen-2-one ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3H-2-Oxa-1H-phenalene-1-one

There total 5 articles about 3H-2-Oxa-1H-phenalene-1-one 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: 55.0%

1-naphthalenecarboxylic acid (86-55-5) + 1,1-dibromomethane (74-95-3) → 3(1H)-benzoisobenzofuranone (5657-01-2) + 1H,3H-benzo[de]isochromen-1-one (518-86-5)

Guidance literature:

With dipotassium hydrogenphosphate; palladium diacetate; at 140 ℃; for 36h;

DOI:10.1002/anie.200902262

Reference yield:

acenaphthene (83-32-9) → 1H,3H-benzo[de]isochromen-1-one (518-86-5) + 1,8-Naphthalic anhydride (81-84-5) + 1(2H)-acenaphthylenone (2235-15-6)

Guidance literature:

With oxygen; manganese(II) acetate; In various solvent(s); at 100 - 140 ℃; for 2h;

Reference yield:

acenaphthene (83-32-9) → 1H,3H-benzo[de]isochromen-1-one (518-86-5) + 1,8-Naphthalic anhydride (81-84-5) + trans-1,2-acenaphthalenediol (2963-87-3) + acenaphthene quinone (82-86-0) + 1(2H)-acenaphthylenone (2235-15-6)

Guidance literature:

With copper(II) acetate dihydrate; manganese(II) acetate dihydrate; oxygen; acetic acid; potassium bromide; at 105 ℃;

DOI:10.1021/op0100448

upstream raw materials:

acenaphthene

1,8-Naphthalic anhydride

1-naphthalenecarboxylic acid

1,1-dibromomethane

Downstream raw materials:

8-methyl-1-naphthoic acid

1-Methylnaphthalene

1-ethyl-8-methylnaphthalene

1-isopropyl-8-methylnaphthalene