Van Snick, Wim published the artcileA facile synthetic route towards substituted thieno[3,2-e]indoles, Recommanded Product: 2-((2-Methylbut-3-yn-2-yl)oxy)tetrahydro-2H-pyran, the publication is Synthesis (2009), 767-774, database is CAplus.
A number of substituted thieno[3,2-e]indoles were prepared in high yields via a Bu4NF-mediated cyclization of 5-acetamido-4-ethynylbenzothiophenes, which, in turn, are easily accessible from the corresponding 4-iodobenzothiophenes. This method presents a viable alternative to the traditionally used Fischer indolization procedures.
Synthesis 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 C18H15N3O3, Recommanded Product: 2-((2-Methylbut-3-yn-2-yl)oxy)tetrahydro-2H-pyran.
Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics