Aratani, Takahiro published the artcileAsymmetric bis(alkoxycarbonylation) reaction of cyclic olefins catalyzed by palladium in the presence of copper(I) triflate, Safety of (4S,4’S)-4,4′-Diisobutyl-4,4′,5,5′-tetrahydro-2,2′-bioxazole, the publication is Bulletin of the Chemical Society of Japan (2012), 85(11), 1225-1232, database is CAplus.
A palladium-catalyzed asym. bis(alkoxycarbonylation) reaction of 1,2-dihydronaphthalene derivatives and related cyclic olefins in the presence of copper(I) triflate was achieved by using a chiral bis[oxazoline] ligand under normal pressure of carbon monoxide and oxygen to give the corresponding optically active cis-dicarboxylates with enantioselectivity up to 94% ee. An asym. intramol. and intermol. bis(alkoxycarbonylation) reaction of a prochiral diol possessing a dihydronaphthalene skeleton also proceeded enantioselectively by an appropriate selection of the substituent of a bis[oxazoline] ligand. The carbonylation product derived from 8-methoxy-1,2-dihydronaphthalene was applied to the synthesis of a biol. active hexahydrobenz[e]isoindole derivative Methoxycarbonylation of 1,2-dihydronaphthalene provided (1R,2R)-1,2,3,4-tetrahydro-1,2-naphthalenedicarboxylic acid di-Me ester (I). Thus, (1R,2R)-1,2,3,4-tetrahydro-5-methoxy-1,2-naphthalenedicarboxylic acid di-Me ester was elaborated into (3aR,9bR)-2,3,3a,4,5,9b-hexahydro-6-methoxy-1H-benz[e]isoindole (II). The synthesis of the target compounds was achieved using 1,2-dihydronaphthalene, 1H-indene, 6,7-dihydro-5H-benzocycloheptene as starting materials. The title compounds thus formed included (1R,2R)-2,3-dihydro-1H-indene-1,2-dicarboxylic acid di-Me ester and (5R,6R)-6,7,8,9-tetrahydro-5H-benzocycloheptene-5,6-dicarboxylic acid 5,6-di-Me ester, (2R,3R)-2-methyl-3-phenylbutanedioic acid 1,4-di-Me ester.
Bulletin of the Chemical Society of Japan published new progress about 138429-17-1. 138429-17-1 belongs to oxazolidine, auxiliary class BOX Ligands, name is (4S,4’S)-4,4′-Diisobutyl-4,4′,5,5′-tetrahydro-2,2′-bioxazole, and the molecular formula is C14H24N2O2, Safety of (4S,4’S)-4,4′-Diisobutyl-4,4′,5,5′-tetrahydro-2,2′-bioxazole.
Referemce:
https://en.wikipedia.org/wiki/Oxazolidine,
Oxazolidine | C3H7NO – PubChem