Ethyl 2-oxo-2H,5H-naphtho[2,1-b]pyrano[2,3-d]pyran-3-carboxylate

Base Information

Chemical Name:Ethyl 2-oxo-2H,5H-naphtho[2,1-b]pyrano[2,3-d]pyran-3-carboxylate
CAS No.:143034-66-6
Molecular Formula:C19H14O5
Molecular Weight:322.31100
Hs Code.:2932999099
DSSTox Substance ID:DTXSID20705282
Wikidata:Q82638091
Mol file:143034-66-6.mol

Synonyms:143034-66-6;DTXSID20705282;IMGOTWSANJNNKF-UHFFFAOYSA-N;Ethyl 2-oxo-2H,5H-1,6-dioxa-benzo[c]phenanthrene-3-carboxylate;Ethyl 2-oxo-2H,5H-naphtho[2,1-b]pyrano[2,3-d]pyran-3-carboxylate

Suppliers and Price of Ethyl 2-oxo-2H,5H-naphtho[2,1-b]pyrano[2,3-d]pyran-3-carboxylate

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

American Custom Chemicals Corporation
2-OXO-2H,5H-1,6-DIOXA-BENZO[C]PHENANTHRENE-3-CARBOXYLIC ACID ETHYL ESTER 95.00%
1G
$ 1194.56

Total 2 raw suppliers

Chemical Property of Ethyl 2-oxo-2H,5H-naphtho[2,1-b]pyrano[2,3-d]pyran-3-carboxylate

Chemical Property:

PSA：65.74000
LogP:3.52910
XLogP3:3.2
Hydrogen Bond Donor Count:0
Hydrogen Bond Acceptor Count:5
Rotatable Bond Count:3
Exact Mass:322.08412354
Heavy Atom Count:24
Complexity:617

Purity/Quality:

98% ^*data from raw suppliers

2-OXO-2H,5H-1,6-DIOXA-BENZO[C]PHENANTHRENE-3-CARBOXYLIC ACID ETHYL ESTER 95.00% ^*data from reagent suppliers

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:: SDS file from LookChem

Useful:

Canonical SMILES:CCOC(=O)C1=CC2=C(C3=C(C=CC4=CC=CC=C43)OC2)OC1=O

Technology Process of Ethyl 2-oxo-2H,5H-naphtho[2,1-b]pyrano[2,3-d]pyran-3-carboxylate

There total 3 articles about Ethyl 2-oxo-2H,5H-naphtho[2,1-b]pyrano[2,3-d]pyran-3-carboxylate 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: 6.0%

: 143034-78-0
(E)-2-Cyano-3-(1-methoxy-3H-benzo[f]chromen-2-yl)-acrylic acid ethyl ester

: 143034-67-7
6-Oxa-5,6-dihydrophenanthro<4,3-b>pyran-2-one

: 143034-66-6
2-Oxo-2H,5H-1,6-dioxa-benzo[c]phenanthrene-3-carboxylic acid ethyl ester

Guidance literature:: With pyridine hydrochloride; for 0.25h; Heating;
DOI:10.1016/S0040-4020(01)90128-0

Reference yield:

: 61603-25-6
4-chloro-3-formyl-1-oxa-1,2-dihydrophenanthrene

: 143034-66-6
2-Oxo-2H,5H-1,6-dioxa-benzo[c]phenanthrene-3-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 73 percent / methanol / 2 h / Heating

2: 61 percent / 30percent aq. ethanolic KOH / ethanol / 0.33 h / Heating

3: 75 percent / pyridine hydrochloride / 0.25 h / Heating

With potassium hydroxide; pyridine hydrochloride; In methanol; ethanol;
DOI:10.1016/S0040-4020(01)90128-0

Reference yield:

: 143034-65-5
1-Methoxy-3H-benzo[f]chromene-2-carbaldehyde

: 143034-66-6
2-Oxo-2H,5H-1,6-dioxa-benzo[c]phenanthrene-3-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: 61 percent / 30percent aq. ethanolic KOH / ethanol / 0.33 h / Heating

2: 75 percent / pyridine hydrochloride / 0.25 h / Heating

With potassium hydroxide; pyridine hydrochloride; In ethanol;
DOI:10.1016/S0040-4020(01)90128-0