204444-15-5Relevant articles and documents
CeCl3/Sm promoted pinacolic coupling of aromatic aldehydes and ketones
Li, Xue,Zhang, Songlin,Zhang, Xinying,Wang, Xiao Yang
, p. 1043 - 1045 (2003)
The pinacolic coupling of aromatic aldehydes and ketone was performed with cerium trichloride and samarium in THF at room temperature to afford the corresponding 1,2-diols in good yields.
Bifunctional copper-based photocatalyst for reductive pinacol-type couplings
Caron, Antoine,Morin, émilie,Collins, Shawn K.
, p. 9458 - 9464 (2019/10/11)
A bifunctional copper-based photocatalyst has been prepared that employs a pyrazole-pyridine ligand incorporating a sulfonamide moiety that functions as an intramolecular hydrogen-bond donor for a photochemical PCET process. In typical reductive PCET processes, the photocatalyst and H-bond donor must have an appropriate redox potential and pKa, respectively, to promote the PCET. When working in concert in a bifunctional catalyst such as Cu(pypzs)(BINAP)BF4, the pKa of the H-bond donor can have an acidity that is orders of magnitude less and still efficiently promote the PCET process. A reductive pinacol-type coupling can be performed using a base-metal derived photocatalyst to afford valuable diols (24 examples, 46-99% yield), from readily available aldehydes and ketones.
Pinacol coupling reaction of aromatic aldehydes mediated by aqueous vanadium(II) solution under ultrasound irradiation
Wang, Shu-Xiang,Wang, Ke,Li, Ji-Tai
, p. 2387 - 2394 (2007/10/03)
Pinacol coupling of aromatic aldehydes by aqueous vanadium(II) solution under ultrasound irradiation at room temperature can lead to the corresponding pinacols in 54-93% yields within 15-30 min. Copyright Taylor & Francis, Inc.