benzo[1,2-b:3,4-b']dipyran-9-ylester, (2Z)-

Base Information

Chemical Name:benzo[1,2-b:3,4-b']dipyran-9-ylester, (2Z)-
CAS No.:73069-27-9
Molecular Formula:C₂₁H₂₂O₇
Molecular Weight:386.401
Hs Code.:
Mol file:73069-27-9.mol

Synonyms:2-Butenoicacid, 2-methyl-,10-(acetyloxy)-9,10-dihydro-8,8-dimethyl-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-ylester, [9S-[9a(Z),10a]]-;(+)-Praeruptorin A;Praeruptorin A;

Suppliers and Price of benzo[1,2-b:3,4-b']dipyran-9-ylester, (2Z)-

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

Matrix Scientific
Praeruptorin A 95+%
1g
$ 1647.00

Matrix Scientific
Praeruptorin A 95+%
250mg
$ 742.00

Crysdot
PraeruptorinA 95+%
25mg
$ 165.00

ChemScene
PraeruptorinA
20mg
$ 457.00

ChemScene
PraeruptorinA
10mg
$ 269.00

ChemScene
PraeruptorinA
5mg
$ 158.00

Cayman Chemical
(+)-Praeruptorin A ≥98%
25mg
$ 42.00

Cayman Chemical
(+)-Praeruptorin A ≥98%
50mg
$ 79.00

Cayman Chemical
(+)-Praeruptorin A ≥98%
100mg
$ 140.00

AvaChem
Praeruptorin A
100mg
$ 790.00

Total 32 raw suppliers

Chemical Property of benzo[1,2-b:3,4-b']dipyran-9-ylester, (2Z)-

Chemical Property:

Vapor Pressure:0mmHg at 25°C
Refractive Index:1.574
Boiling Point:486.817 °C at 760 mmHg
Flash Point:211.534 °C
Density:1.289 g/cm³

Purity/Quality:

99%, ^*data from raw suppliers

Praeruptorin A 95+% ^*data from reagent suppliers

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:: SDS file from LookChem

Useful:

Technology Process of benzo[1,2-b:3,4-b']dipyran-9-ylester, (2Z)-

There total 9 articles about benzo[1,2-b:3,4-b']dipyran-9-ylester, (2Z)- 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: 74.8%

: 35660-94-7
(E)-2-methylbut-2-enoyl chloride

: 4955-21-9,35345-45-0,107080-28-4,112346-42-6,118492-19-6,118492-23-2
(+/-)-trans-4'-acetylkhellactone

: 14017-71-1,73069-25-7,73069-27-9,81740-05-8,112346-41-5,118492-20-9,118492-26-5,127643-75-8
(+/-)-trans-4'-acetyl=3'-tigloylkhellactone

Guidance literature:: In benzene; Heating;
DOI:10.1248/cpb.43.859

Reference yield: 21.1%

: 35660-94-7,49651-33-4,62529-65-1
(Z)-2-methyl-2-butenoyl chloride

: 4955-21-9,35345-45-0,107080-28-4,112346-42-6,118492-19-6,118492-23-2
(+/-)-cis-4'-acetylkhellactone

: 14017-71-1,73069-25-7,73069-27-9,81740-05-8,112346-41-5,118492-20-9,118492-26-5,127643-75-8
(+/-)-4'-O-acetyl-3'-O-angeloyl-cis-khellactone

Guidance literature:: In benzene;
DOI:10.1248/cpb.36.4221

Reference yield:

: 523-59-1
seseline

: 14017-71-1,73069-25-7,73069-27-9,81740-05-8,112346-41-5,118492-20-9,118492-26-5,127643-75-8
(+/-)-cis-4'-acetyl-3'-tigloylkhellactone

Guidance literature:: Multi-step reaction with 3 steps

1: 75 percent Turnov_. / OsO₄, N-methylmorpholine-N-oxide dihydrate / 2-methyl-propan-2-ol; tetrahydrofuran; H₂O / 72 h / Ambient temperature

2: 65 percent Turnov_. / BF₃*Et₂O / tetrahydrofuran / 2.8 h / Ambient temperature

3: 86 percent Turnov_. / 4-pyrrolidinopyridine, 1,3-dicyclohexylcarbodiimide (DCC) / CH₂Cl₂ / 125 h / Heating

With osmium(VIII) oxide; boron trifluoride diethyl etherate; 4-pyrrolidin-1-ylpyridine; 4-methylmorpholine N-oxide; dicyclohexyl-carbodiimide; In tetrahydrofuran; dichloromethane; water; tert-butyl alcohol;
DOI:10.3987/R-1987-05-1239