6-Bromo-5,8-bis[(2-methoxyethoxy)methoxy]-2,2-dimethyl-2H-1-benzopyran

Base Information

Chemical Name:6-Bromo-5,8-bis[(2-methoxyethoxy)methoxy]-2,2-dimethyl-2H-1-benzopyran
CAS No.:557757-31-0
Molecular Formula:C19H27BrO7
Molecular Weight:447.323
Hs Code.:
DSSTox Substance ID:DTXSID90464955
Nikkaji Number:J1.889.403C
Wikidata:Q82290539
Mol file:557757-31-0.mol

Synonyms:557757-31-0;2H-1-BENZOPYRAN, 6-BROMO-5,8-BIS[(2-METHOXYETHOXY)METHOXY]-2,2-DIMETHYL-;2H-1-Benzopyran, 6-bromo-5,8-bis[(2-methoxyethoxy)methoxy]-2,2-dimethyl- (9CI);DTXSID90464955;6-bromo-5,8-bis(2-methoxyethoxymethoxy)-2,2-dimethylchromene;AB45051;6-BROMO-5,8-BIS[(2-METHOXYETHOXY)METHOXY]-2,2-DIMETHYL-2H-1-BENZOPYRAN;6-Bromo-5,8-bis((2-methoxyethoxy)methoxy)-2,2-dimethyl-2H-chromene;2H-1-Benzopyran,6-bromo-5,8-bis[(2-methoxyethoxy)methoxy]-2,2-dimethyl-(9CI)

Suppliers and Price of 6-Bromo-5,8-bis[(2-methoxyethoxy)methoxy]-2,2-dimethyl-2H-1-benzopyran

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

Total 4 raw suppliers

Chemical Property of 6-Bromo-5,8-bis[(2-methoxyethoxy)methoxy]-2,2-dimethyl-2H-1-benzopyran

Chemical Property:

Vapor Pressure:7.15E-10mmHg at 25°C
Boiling Point:506.2oC at 760 mmHg
Flash Point:212oC
PSA：64.61000
Density:1.286g/cm3
LogP:3.63190
XLogP3:3.1
Hydrogen Bond Donor Count:0
Hydrogen Bond Acceptor Count:7
Rotatable Bond Count:12
Exact Mass:446.09402
Heavy Atom Count:27
Complexity:446

Purity/Quality:: 98%min ^*data from raw suppliers

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:: SDS file from LookChem

Useful:

Canonical SMILES:CC1(C=CC2=C(O1)C(=CC(=C2OCOCCOC)Br)OCOCCOC)C

Technology Process of 6-Bromo-5,8-bis[(2-methoxyethoxy)methoxy]-2,2-dimethyl-2H-1-benzopyran

There total 1 articles about 6-Bromo-5,8-bis[(2-methoxyethoxy)methoxy]-2,2-dimethyl-2H-1-benzopyran 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:

: 31558-41-5
4-bromo-2,5-dimethoxybenzaldehyde

: 557757-31-0
6-bromo-5,8-bis-(2-methoxy-ethoxymethoxy)-2,2-dimethyl-2H-chromene

Guidance literature:: Multi-step reaction with 6 steps

1.1: m-CPBA / CH₂Cl₂ / 4 h / 25 °C

1.2: 99 percent / aq. NaOH / methanol / 1 h / 25 °C

2.1: 84 percent / DBU; CuCl₂ / acetonitrile / 6 h / 0 °C

3.1: cerium ammonium nitrate / acetonitrile; H₂O / 0.5 h / 25 °C

4.1: PhCH₃ / 0.5 h / 40 °C

5.1: NaBH₄; AcOH / tetrahydrofuran / 0.5 h / 25 °C

6.1: DIPEA / CH₂Cl₂ / 2 h / 0 °C

With sodium tetrahydroborate; ammonium cerium(IV) nitrate; acetic acid; 1,8-diazabicyclo[5.4.0]undec-7-ene; N-ethyl-N,N-diisopropylamine; 3-chloro-benzenecarboperoxoic acid; toluene; copper dichloride; In tetrahydrofuran; dichloromethane; water; acetonitrile; 1.1: Baeyer-Villiger oxidation / 4.1: Claisen cyclization;
DOI:10.1016/S0040-4039(03)00629-4

Reference yield: 52.0%

: 113984-70-6
2,5-bis(tert-butyldimethylsilyloxy)benzaldehyde

: 557757-31-0
6-bromo-5,8-bis-(2-methoxy-ethoxymethoxy)-2,2-dimethyl-2H-chromene

: 557757-35-4
[2,5-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-[5,8-bis-(2-methoxy-ethoxymethoxy)-2,2-dimethyl-2H-chromen-6-yl]-methanol

Guidance literature:: With n-butyllithium; In diethyl ether; at -78 - 0 ℃; for 1h;
DOI:10.1016/S0040-4039(03)00629-4

Reference yield:

: 557757-31-0
6-bromo-5,8-bis-(2-methoxy-ethoxymethoxy)-2,2-dimethyl-2H-chromene

: 557757-30-9
6-(2,5-dihydroxy-benzoyl)-2,2-dimethyl-2H-chromene-5,8-dione

Guidance literature:: Multi-step reaction with 5 steps

1: 52 percent / n-BuLi / diethyl ether / 1 h / -78 - 0 °C

2: 66 percent / Dess-Martin periodinane / CH₂Cl₂ / 1 h / 25 °C

3: 70 percent / ZnBr₂ / CH₂Cl₂ / 4 h / 25 °C

4: 31 percent / IBX / CHCl₃; dimethylformamide / 4 h / 25 °C

5: 40 percent / TBAF / tetrahydrofuran / 1 h / 25 °C

With n-butyllithium; tetrabutyl ammonium fluoride; Dess-Martin periodane; zinc dibromide; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione; In tetrahydrofuran; diethyl ether; dichloromethane; chloroform; N,N-dimethyl-formamide;
DOI:10.1016/S0040-4039(03)00629-4