56671-85-3Relevant articles and documents
Tandem Ullmann-Goldberg Cross-Coupling/Cyclopalladation-Reductive Elimination Reactions and Related Sequences Leading to Polyfunctionalized Benzofurans, Indoles, and Phthalanes
Khan, Faiyaz,Fatima, Mehvish,Shirzaei, Moheb,Vo, Yen,Amarasiri, Madushani,Banwell, Martin G.,Ma, Chenxi,Ward, Jas S.,Gardiner, Michael G.
supporting information, p. 6342 - 6346 (2019/08/20)
On exposure to a combination of Cu[I]- and Pd[0]-based catalysts, compounds such as 1 and 7 engage in tandem Ullmann-Goldberg cross-coupling and cyclopalladation-reductive elimination reactions to give benzofurans such as 8. Related reactions involving hetero-Michael additions of o-halogenated phenols or anilines to propiolates and the Pd[0]-catalyzed cyclization of the resulting conjugates provide, in a one-pot process, alternately functionalized benzofurans, indoles, or phthalanes.
Synthesis of β-chloro, β-bromo, and β-iodo α,β-unsaturated ketones
Piers, Edward,Grierson, John R.,Lau, Cheuk Kun,Nagakura, Isao
, p. 210 - 223 (2007/10/02)
A new, efficient method for the preparation of β-chloro, β-bromo, and β-iodo α,β-unsaturated ketones is described.The method involves the reaction of β-diketones or α-hydroxymethylenecycloalkanones with triphenylphosphine dihalides in the presence of trie
