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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 893768Erstellt: 24. Oktober 2026

3,4-dihydro-2H-pyran → 2H-Pyran, 2-(4-chlorobutoxy)tetrahydro-

https://huagongshe.com/de/reaction/893768

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
Edukt3,4-dihydro-2H-pyranHCID 8080—
Edukt4-Chloro-1-butanolHCID 13569—
KatalysatorHydrochloric AcidHCID 313—
Produkt2H-Pyran, 2-(4-chlorobutoxy)tetrahydro-HCID 17048889,9%

Reaktionsschritte

Dihydropyran (15.5 g) was added dropwise to a mixture of 4-chlorobutanol (20 g) and hydrochloric acid (18 M, 1 drop) at RT. The mixture was stirred for 30 min and washed with H2O (100 ml), aqueous NaHCO3 (1M, 50 ml) and BR (50 ml). The dried liquid was heated under reduced pressure to leave the title compound as a colorless liquid (31.9 g). T.l.c. [L] Rf 0.5.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05126375
Quelldatensatzuspto-grants-1992_06
ORD IDord-42cdf4cbd13c4279b3815645c13b7b29
Quellennotizuspto-grants-1992_06