Song, Yulong published the artcilePalladium-Catalyzed Triple Cyclization of 2,7-Alkadiynylic Carbonates with 2-Butyne-1,4-diol or 2-Butyne-1,4-disulfonamides, COA of Formula: C10H16O2, the publication is Advanced Synthesis & Catalysis (2019), 361(13), 3228-3233, database is CAplus.
A palladium-catalyzed highly E-selective triple cyclization of 2,7-alkadiynylic carbonates with 2-butyne-1,4-diol or 2-butyne-1,4-disulfonamides to construct different tricycles such as 6,8-dihydrobenzo[1,2-c:3,4-c’]difuran-1(3H)-one and 1,3,6,7-tetrahydro-8H-furo[3,4-e]isoindol-8-one derivatives were reported. The alkene group produced and the nucleophilic unit kept in the product provided further opportunity to construct more complicated polycycles. The control experiments showed that the reaction mainly go through an intermol. insertion of the alkynes before the lactonization or lactamization.
Advanced Synthesis & Catalysis 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 Al2H32O28S3, COA of Formula: C10H16O2.
Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics