3-alkylated-5,5′,6,6′, 7, 7′, 8, 8′—octahydro-2, 2′-binaphthols and 3, 3′-dialkylated- 5, 5′, 6, 6′, 7, 7′, 8, 8′-octahydro—2, 2′-binaphthols and processes for making
AssigneeInvista North America S.A.R.L.
InventorsHelen S. M. Lu, Weiming Qiu, Rafael Shapiro
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Abstract
The compositions 3-alkylated-5,5′,6,6′,7,7′,8,8′-octahydro-2,2′-binaphthol and 3,3′-dialkylated-5,5′,6,6′,7,7′,8,8′-octahydro-2,2′-binaphthol are disclosed, as well as various processes for making them, all involving the alkylation of 5,5′,6,6′,7,7′,8,8′-octahydro-2,2′-binaphthol.
Claims6
A process for making 3-alkylated-5,5′,6,6′,7,7′,8,8′-octahydro-2,2′-binaphthol, comprising contacting 5,5′,6,6′,7,7′,8,8′-octahydro-2,2′-binaphthol with at least one alkene or cycloalkene in the presence of an acid catalyst, wherein said acid catalyst is selected from the group consisting of trifluoromethanesulfonic acid on silica and alkylsulfonic acid on silica.
Dependencies are inferred from the claim text.