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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 483466Erstellt: 25. Oktober 2026

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

https://huagongshe.com/reaction/483466

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 (18M, 1 drop) at RT. The mixture was stirred for 30 min and washed with H2O (100 ml), aqueous NaHCO3 (1M, 50ml) and BR (50 ml). The dried liquid was heated under reduced pressure to leave the title compound as a colourless liquid (31.9 g). T.l.c. [L] Rf 0.5.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05225445
Quelldatensatzuspto-grants-1993_07
ORD IDord-2f1f6bb3aa0943b0855f794fab0230c3
Quellennotizuspto-grants-1993_07