22248-27-7Relevant articles and documents
Reductive Carbonylation of Acetylenes under Water-Gas Shift Reaction Conditions. Synthesis of Furan-2(5H)-ones from Terminal and Non-substituted Acetylenes
Joh, Takashi,Nagata, Hiroyuki,Takahashi, Shigetoshi
, p. 1305 - 1308 (1992)
Under water-gas reaction conditions terminal and non-substituted acetylenes are selectively converted into furan-2(5H)-ones by catalysis with a rhodium carbonyl cluster.
Cobalt-Catalyzed Vinylic C-H Addition to Formaldehyde: Synthesis of Butenolides from Acrylic Acids and HCHO
Yu, Shuling,Hong, Chao,Liu, Zhanxiang,Zhang, Yuhong
, p. 8359 - 8364 (2021/11/01)
A carboxyl-assisted C-H functionalization of acrylic acids with formaldehyde to give butenolides is described. It is the first time that the addition of an inert vinylic C-H bond to formaldehyde has been achieved via cobalt-catalyzed C-H activation. The unique reactivity of the cobalt species was observed when compared with related Rh or Ir catalysts. γ-Hydroxymethylated butenolides were produced by the treatment of Na2CO3 after the catalytic reaction in one pot.
Regioselective Pd-catalyzed alkylative lactonizations of 4-hydroxy-2-alkynecarboxylates with organoboronic acids
Oh, Chang Ho,Park, Su Jin,Ryu, Jin Hyang,Gupta, Arun Kumar
, p. 7039 - 7042 (2007/10/03)
The Pd-catalyzed addition of organoboronic acids to 4-hydroxy-2- alkynecarboxylates and in situ lactonization gave the butenolides with a high control of regioselectivity.