2--naphtho<2,1-b>-1,3-dihydro-4-oxo-pyranylacetic acid

Base Information

Chemical Name:2--naphtho<2,1-b>-1,3-dihydro-4-oxo-pyranylacetic acid
CAS No.:156641-33-7
Molecular Formula:C₂₃H₂₁NO₄
Molecular Weight:375.424
Hs Code.:

2-<p-(N,N'-dimethylamino)phenyl>-naphtho<2,1-b>-1,3-dihydro-4-oxo-pyranylacetic acid

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Chemical Property of 2--naphtho<2,1-b>-1,3-dihydro-4-oxo-pyranylacetic acid

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Technology Process of 2--naphtho<2,1-b>-1,3-dihydro-4-oxo-pyranylacetic acid

There total 1 articles about 2--naphtho<2,1-b>-1,3-dihydro-4-oxo-pyranylacetic acid 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:

: 156641-31-5
2--naphtho-<2,1-b>-2,3-dihydropyran-4-one

: 298-12-4
Glyoxilic acid

: 156641-33-7
2--naphtho<2,1-b>-1,3-dihydro-4-oxo-pyranylacetic acid

Guidance literature:: With sodium hydroxide; acetic acid; zinc; Yield given. Multistep reaction; 1.) RT, 4 h, 2.) water, 1 h;
DOI:10.1080/00397919408010215

Reference yield: 64.2%

: 186581-53-3,908094-01-9,334-88-3
diazomethane

: 156641-33-7
2--naphtho<2,1-b>-1,3-dihydro-4-oxo-pyranylacetic acid

: 156641-34-8
[3-(4-Dimethylamino-phenyl)-1-oxo-2,3-dihydro-1H-benzo[f]chromen-2-yl]-acetic acid methyl ester

Guidance literature:: With triethylamine; In diethyl ether; for 5h; Ambient temperature;
DOI:10.1080/00397919408010215

Reference yield:

: 156641-33-7
2--naphtho<2,1-b>-1,3-dihydro-4-oxo-pyranylacetic acid

: 6--naphtho<2,1-b>pyrano<4,3-c>-4,5-dihydro-pyridazin-3-one

Guidance literature:: Multi-step reaction with 2 steps

1: 64.2 percent / Et₃N / diethyl ether / 5 h / Ambient temperature

2: 56.6 percent / hydrazine hydrate / ethanol / 4 h / Heating

With hydrazine hydrate; triethylamine; In diethyl ether; ethanol;
DOI:10.1080/00397919408010215