Sim, So Hee published the artcilePalladium(0)-Catalyzed Decarboxylation of Buta-2,3-dienyl 2′-Alkynoates: Approach to the Synthesis of 2-Alkynyl Buta-1,3-dienes, Application of 2-((2-Methylbut-3-yn-2-yl)oxy)tetrahydro-2H-pyran, the publication is Organic Letters (2008), 10(3), 433-436, database is CAplus and MEDLINE.
The Pd(PPh3)4-catalyzed decarboxylation of buta-2,3-dienyl 2′-alkynoates allows the rapid construction of 2-alkynyl buta-1,3-dienes, e.g., I. The carbon-carbon bond-forming reaction occurs at the central position of an allene moiety.
Organic Letters published new progress about 27943-46-0. 27943-46-0 belongs to tetrahydropyran, auxiliary class Tetrahydropyran,Alkynyl,Ether, name is 2-((2-Methylbut-3-yn-2-yl)oxy)tetrahydro-2H-pyran, and the molecular formula is C7H7ClN2, Application of 2-((2-Methylbut-3-yn-2-yl)oxy)tetrahydro-2H-pyran.
Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics