Generation of α,β-unsaturated platinum carbenes from homopropargylic alcohols: rearrangements to polysubstituted furans was written by Allegretti, Paul A.;Ferreira, Eric M.. And the article was included in Organic Letters in 2011.Product Details of 40365-61-5 This article mentions the following:
A number of diversely substituted furans are synthesized via a cycloisomerization process that goes through a unique metal carbene species. Both ligand structure and the nature of the leaving group are evaluated. The characteristics of the carbene intermediate can be modulated, resulting in highly selective hydrogen or silicon group migrations. In the experiment, the researchers used many compounds, for example, 2-(But-3-yn-1-yloxy)tetrahydro-2H-pyran (cas: 40365-61-5Product Details of 40365-61-5).
2-(But-3-yn-1-yloxy)tetrahydro-2H-pyran (cas: 40365-61-5) belongs to tetrahydropyran derivatives. Tetrahydropyran is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and dyestuff. 2-(Arylmethylene)cyclopropylcarbinols could be converted to the corresponding tetrahydropyrans stereoselectively in the presence of Brønsted acids under mild conditions. A plausible Prins-type reaction mechanism has been proposed.Product Details of 40365-61-5
Referemce:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics