Catalyzed Selective Direct α??and γ??Alkylation of Aldehydes with Cyclic Benzyl Ethers by Using T+ BF4− in the Presence of an Inexpensive Organic Acid or Anhydride
…, R Rohlmann, O García Mancheño
Index: Richter, Heinrich; Rohlmann, Renate; Garcia Mancheno, Olga Chemistry - A European Journal, 2011 , vol. 17, # 41 p. 11622 - 11627
Full Text: HTML
Citation Number: 52
Abstract
Abstract The cross dehydrogenative coupling (CDC) of cyclic benzyl ethers with aliphatic and α, β-unsaturated aldehydes has been developed. The mild reaction conditions, in which an N-oxoammonium salt derived from TEMPO (2, 2, 6, 6-tetramethyl-1-piperidinoxyl) is employed as the oxidant in combination with a Cu catalyst, allow the use of relatively redox- unstable aldehydes under oxidative CDC conditions. The addition of a catalytic amount of ...
Related Articles:
[Watanabe, Yutaka; Ishimaru, Masanori; Ozaki, Shoichiro Chemistry Letters, 1994 , # 11 p. 2163 - 2166]
[Brunet, Jean-Jacques; Sidot, Christian; Caubere, Paul Journal of Organic Chemistry, 1983 , vol. 48, # 8 p. 1166 - 1171]
Benzylic oxidation catalyzed by dirhodium (II, III) caprolactamate
[Catino, Arthur J.; Nichols, Jason M.; Choi, Hojae; Gottipamula, Sidhartha; Doyle, Michael P. Organic Letters, 2005 , vol. 7, # 23 p. 5167 - 5170]
[Wu, Xiongyu; Mahalingam; Wan, Yiqian; Alterman, Mathias Tetrahedron Letters, 2004 , vol. 45, # 24 p. 4635 - 4638]
Dehydrogenative α-Oxygenation of Ethers with an Iron Catalyst
[Gonzalez-De-Castro, Angela; Robertson, Craig M.; Xiao, Jianliang Journal of the American Chemical Society, 2014 , vol. 136, # 23 p. 8350 - 8360]