Cherry, Khalil published the artcileEfficient regio- and stereoselective synthesis of 5-alkyl(aryl)idene- and 5-[iodoalkyl(aryl)idene]-1H-pyrrol-2(5H)-ones via electrophilic cyclization, Quality Control of 27943-46-0, the publication is Synthesis (2009), 257-270, database is CAplus.
A variety of substituted 5-alkyl(aryl)idene- and 5-[iodoalkyl(aryl)idene]-1H-pyrrol-2(5H)-ones were readily prepared with good yields under very mild reaction conditions by the iodocyclization of (2Z,4E)-dienamides and (Z)-alk-2-en-4-ynamides with ICl. 3-Ylidene-isoindolin-1-ones were also synthesized in moderate to good yields under the same conditions. The methodol. proceeded with total regioselectivity in all cases and was applied to the synthesis of new unsaturated lactams.
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 C10H16O2, Quality Control of 27943-46-0.
Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics