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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 5214Erstellt: 23. Oktober 2026

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

https://huagongshe.com/de/reaction/5214

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 (1 M, 50 ml) 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
PatentnummerUS05243076
Quelldatensatzuspto-grants-1993_09
ORD IDord-8d888550453845d89f366f2eeaefe39f
Quellennotizuspto-grants-1993_09