34740-23-3Relevant articles and documents
1,4-Carbonylative addition of arylboronic acids to methyl vinyl ketone: a new synthetic tool for rapid furan and pyrrole synthesis
Chochois, Hélène,Sauthier, Mathieu,Maerten, Eddy,Castanet, Yves,Mortreux, André
, p. 11740 - 11746 (2006)
The rhodium catalysed 1,4-carbonylative addition of arylboronic acids to methyl vinyl ketone under carbon monoxide pressure was studied. High yields of 1,4-diketones were obtained using a catalytic system formed from Rh(COD)2BF4 (COD=1,5-cyclooctadiene) and triphenylphosphine even at very low catalyst loading (0.02 mol %). A short synthetic procedure combining this carbonylation reaction with a subsequent cyclisation step affords pyrroles or furans.
PREPARATION AND USE OF BIFURAN AND BIPHENYL DICARBOXYLIC ACIDS, ALCOHOLS, AND ESTERS
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Paragraph 0036, (2019/11/04)
A process for producing bifuran and/or biphenyl dicarboxylic acids, alcohols, and/or esters comprises reacting one or more furanyl compounds having the formula (I), where each R1 is independently selected from the group consisting of -H, -CH3, -CHO, -CH2OH, -COOH or -COOR2, where R2 is an alkyl group having from 1 to 20 carbon atoms, in the presence of a first catalyst to produce a reaction product comprising a bifuran compound having the formula (II).
Synthesis of furans, pyrroles and pyridazines by a ruthenium-catalysed isomerisation of alkynediols and in situ cyclisation
Pridmore, Simon J.,Slatford, Paul A.,Taylor, James E.,Whittlesey, Michael K.,Williams, Jonathan M.J.
supporting information; experimental part, p. 8981 - 8986 (2009/12/27)
Alkyne-1,4-diols are readily available substrates which are isomerised to 1,4-diketones using Ru(PPh3)3(CO)H2/xantphos as a catalyst. In situ cyclisation into furans, pyrroles and pyridazines has been achieved under suitable conditions.
