27593-23-3Relevant articles and documents
Halogen-dependent coupling reaction of alkynes with (Z)-3- halopropenoates catalyzed by nickel
Kotora, Martin,Ishikawa, Masanori,Tsai, Fu-Yu,Takahashi, Tamotsu
, p. 4969 - 4978 (1999)
Ni-catalyzed coupling reaction of alkynes with (Z)-3-halopropenoates depended on the halogen of halopropenoates. The reaction with (Z)-3- bromopropenoate afforded cyclopentadienes and the reaction with (Z)-3- iodopropenoates gave pyrones.
A flexible route to bioactive 6-alkyl-α-pyrones
Qu, Yang,Kraus, George A.
supporting information, p. 892 - 893 (2017/02/18)
Both 6-chloro-α-pyrones and 3-chlorobenzopyran-1-ones react with malonates followed by a double decarboalkoxylation to give the corresponding alkyl and alkenyl products.
Syntheses of α-pyrones using gold-catalyzed coupling reactions
Luo, Tuoping,Dai, Mingji,Zheng, Shao-Liang,Schreiber, Stuart L.
supporting information; experimental part, p. 2834 - 2836 (2011/07/07)
Sequential alkyne activation of terminal alkynes and propiolic acids by gold(I) catalysts yields compounds having α-pyrone skeletons. Novel cascade reactions involving propiolic acids are reported that give rise to α-pyrones with different substitution patterns.
6-Chloro-2(2H)-pyranone: A new 2(2H)-pyranone synthon
Biagetti, Matteo,Bellina, Fabio,Carpita, Adriano,Rossi, Renzo
, p. 607 - 610 (2007/10/03)
6-Chloro-2(2H)-pyranone, which can be prepared in high yield from commercially available trans-glutaconic acid, undergoes facile Pd/Cu-catalyzed reaction with various 1-alkynes to give rise to the corresponding 6-(1-alkynyl)-2(2H)-pyranones in moderate to good yields. These last hitherto unknown compounds have been used as direct precursors to 6-alkyl- and 6-[(Z)-1-alkenyl]-2(2H)-pyranones.
