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(CAS RN:253430-48-7 Product Number:I0728)


Synonym (9S)-3α,9-Epoxy-10,11-dihydrocinchonan-6'-ol
Synonym β-ICD

General Information

Product Number I0728

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Purity/Analysis Method >98.0%(HPLC)(T)
Storage Temperature
M.F. / M.W. C19H22N2O2=310.40
CAS RN 253430-48-7
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Purity(HPLC) min. 98.0 area%
Purity(Nonaqueous Titration) min. 98.0 %
Specific rotation [a]20/D -10.0 to -16.0 deg(C=1, EtOH)

Data of Reference

mp 259°C(lit.)


Beilstein 27(4)7371
Reaxys-RN 90431
PubChem SID 87560921


Useful Cinchona Alkaloid Derived Catalysts

Typical Procedure:
1 or 2 (0.1 or 0.2 mmol) is dissolved in THF (2 mL) and the solution is evaporated by rotary evaporation at room temperature. After repeating this operation three times, the amorphous residue is dried under vacuum at room temperature for 10 min. A solution of the dried 1 or 2 and aldehyde (1.0 mmol) in DMF is cooled to –55 °C, and HFIPA (1.3 mmol) is then added. After the mixture is stirred at –55 °C, the reaction is quenched by the addition of 0.1 M HCl (3 mL). The mixture is extracted with EtOAc, washed with saturated NaHCO3 and brine, dried over MgSO4, concentrated, and chromatographed on silica gel (hexane-EtOAc) to give the corresponding products.


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