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CHELATION-CONTROLLE...
CHELATION-CONTROLLED, PALLADIUM-CATALYZED ARYLATION OF ENOL ETHERS WITH ARYL TRIFLATES - LIGAND CONTROL OF SELECTION FOR ALPHA-ARYLATION OR BETA-ARYLATION OF [2-(DIMETHYLAMINO)ETHOXY]ETHENE
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- LARHED, M (författare)
- Uppsala universitet,Avdelningen för organisk farmaceutisk kemi
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ANDERSSON, CM (författare)
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HALLBERG, A (författare)
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(creator_code:org_t)
- UPPSALA UNIV, UPPSALA BIOMED CTR, DEPT ORGAN PHARMACEUT CHEM, S-75123 UPPSALA, SWEDEN. ASTRA DRACO AB, PRECLIN RES & DEV, DEPT MED CHEM, S-22100 LUND, SWEDEN. 1994
- 1994
- Engelska.
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Ingår i: Tetrahedron. - UPPSALA UNIV, UPPSALA BIOMED CTR, DEPT ORGAN PHARMACEUT CHEM, S-75123 UPPSALA, SWEDEN. ASTRA DRACO AB, PRECLIN RES & DEV, DEPT MED CHEM, S-22100 LUND, SWEDEN.. - 0040-4020 .- 1464-5416. ; 50:2, s. 285-304
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Palladium-catalyzed arylation reactions of [2-(Dimethylamino)ethoxy]ethene (1) with a series of aryl triflates were performed under a variety of reaction conditions. In particular, the influence of phosphine ligands and halide additives on regioselectivity were studied. It was found that the chelation-controlled arylation of 1 affords an expedient route for the conversion of phenols into arylacetaldehydes. Alternatively, the same starting materials could be used to synthesize acetophenones by reversing the regioselectivity with bidentate phosphine ligands.
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