(R)-5,7-difluorochroman-4-ol

CAS NO.：1270294-05-7
Empirical Formula: C9H8F2O2
Molecular Weight: 186.16
MDL number: MFCD09763634
Update Date: 2026-05-28 00:19:40

What is (R)-5,7-difluorochroman-4-ol?

The Uses of (R)-5,7-difluorochroman-4-ol

(R)-5,7-difluorochroman-4-ol is an important intermediate in the synthesis of tegoprazan[1].

Production Methods

Preparing (R)-5,7-difluorochroman-4-ol involves taking 5, 7-difluorochroman-4-one as substrate and performing asymmetric reduction reaction in the presence of ketoreductase, coenzyme and coenzyme circulating system to obtain (R)-5,7-difluorochroman-4-ol, where ketoreductase is one or combination of two or more of short-chain dehydrogenases/reductases family (SDR), medium-chain dehydrogenases/reductase (MDR) or aldo-Keto reductase (AKR)[1].

References

[1]PAN X, et al. "Preparing (R)-5,7-difluorochroman-4-ol involves taking 5, 7-difluorochroman-4-one as substrate, and performing asymmetric reduction reaction in the presence of ketoreductase, coenzyme and coenzyme circulating system to obtain (R)-5,7-difluorochroman-4-ol.", CN202210486605.0. 2022.

Properties of (R)-5,7-difluorochroman-4-ol

Boiling point:	228.4±40.0 °C(Predicted)
Density	1.402±0.06 g/cm3(Predicted)
pka	13.09±0.20(Predicted)
InChI	InChI=1S/C9H8F2O2/c10-5-3-6(11)9-7(12)1-2-13-8(9)4-5/h3-4,7,12H,1-2H2/t7-/m1/s1

Safety information for (R)-5,7-difluorochroman-4-ol

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.