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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1659045Generated: October 25, 2026

3,4-dihydro-2H-pyran → 5,5-Dimethyl-3-tetrahydropyranyloxy-1-octyne

https://huagongshe.com/reaction/1659045

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-dihydro-2H-pyranHCID 8080—
Reactant5,5-Dimethyl-1-octyn-3-olHCID 20465589—
CatalystPhosphorus oxychlorideHCID 24813—
Product5,5-Dimethyl-3-tetrahydropyranyloxy-1-octyneHCID 53889730—

Reaction Steps

Treatment of 23.1 g. (0.150 mole) of 5,5-dimethyl---octyn-3-ol (Example 998) with 126 g. of dihydropyran and 1 drop of phosphorus oxychloride as described in Example 995 gives the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03966773
Source datasetuspto-grants-1976_06
ORD IDord-4a4b3cf7fe474a8eb68c2ec3ecf1d223
Source noteuspto-grants-1976_06