![](/CAS/GIF/20728-73-8.gif)
(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol synthesis
- Product Name:(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol
- CAS Number:20728-73-8
- Molecular formula:C43H38O6
- Molecular Weight:650.76
![Benzyl chloride](/CAS/GIF/100-44-7.gif)
100-44-7
628 suppliers
$13.50/250G
![Cianidanol](/CAS/GIF/154-23-4.gif)
154-23-4
316 suppliers
$11.00/100mg
![(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol](/CAS/GIF/20728-73-8.gif)
20728-73-8
12 suppliers
$165.00/100mg
Yield:20728-73-8 98%
Reaction Conditions:
with sodium hydride in N,N-dimethyl-formamide at -78 - 20;
References:
Mustafa, Jamal;Khan, Riaz;Khan, Ikhlas A.;Ferreka, Daneel [Organic Preparations and Procedures International,2004,vol. 36,# 1,p. 61 - 67]
![Benzyl bromide](/CAS/GIF/100-39-0.gif)
100-39-0
423 suppliers
$10.00/10g
![Cianidanol](/CAS/GIF/154-23-4.gif)
154-23-4
316 suppliers
$11.00/100mg
![(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol](/CAS/GIF/20728-73-8.gif)
20728-73-8
12 suppliers
$165.00/100mg
![1,2-Propanediol, 1-[3,4-bis(phenylmethoxy)phenyl]-3-[2-hydroxy-4,6-bis(phenylmethoxy)phenyl]-, (1S,2S)-](/CAS/20210305/GIF/732298-11-2.gif)
732298-11-2
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![(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol](/CAS/GIF/20728-73-8.gif)
20728-73-8
12 suppliers
$165.00/100mg
![(+)-Catechin-pentaacetate](/CAS/GIF/16198-01-9.gif)
16198-01-9
46 suppliers
inquiry
![Benzyl chloride](/CAS/GIF/100-44-7.gif)
100-44-7
628 suppliers
$13.50/250G
![(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol](/CAS/GIF/20728-73-8.gif)
20728-73-8
12 suppliers
$165.00/100mg