In:
Applied Organometallic Chemistry, Wiley, Vol. 34, No. 10 ( 2020-10)
Abstract:
Three bidentate phosphoramidite ligands were synthesized, characterized, and employed in Rh‐catalyzed hydroformylation of vinyl ethers. The complex Rh(acac)(2,2′‐bis{(di[1H‐indol‐1‐yl]phosphanyl)oxy}‐1,1′‐binaphthalene} (acac = acetylacetone) (Rh‐ L4 ) was also synthesized and characterized. Rh‐ L4 showed good regioselectivity for the hydroformylation of vinyl ethers under mild reaction conditions: 2 MPa of syngas, 1:1 (H 2 /CO) substrate/catalyst molar ratio 1000:1, and 60 °C. The linear selectivity was up to 98%, and in most cases was about 80%, with no hydrogenation product formation observed, which could be a potential way to synthesize 1,3‐propanediol. A mechanism study including density functional theory computational analysis showed that both Rh–H and CO insertion steps in the hydroformylation of vinyl ether were linear‐preferred in our catalyst system.
Type of Medium:
Online Resource
ISSN:
0268-2605
,
1099-0739
Language:
English
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
1480791-9
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