In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Rhodium-catalysed tetradehydro-Diels-Alder reactions of enediynes via a rhodium-stabilized cyclic allene, published in 2020, which mentions a compound: 16400-32-1, mainly applied to isobenzofuran preparation; isoindoline preparation; indane preparation; enediyne Diels Alder reaction rhodium catalyst, Application of 16400-32-1.
Herein, tethered unconjugated enediynes R1CCCH=CHCH(R3)XCH2CCR2 [R1 = Ph, n-pentyl, 4-fluorophenyl, etc.; R2 = H, Et, Ph; R3 = H, Me, n-Pr; X = O, NTs, NNs, C(C(O)OMe)2] have been shown to undergo a facile room-temperature RhI-catalyzed intramol. tetradehydro-Diels-Alder reaction to produce highly substituted isobenzofurans, isoindolines and indane I. Furthermore, exptl. and computational studies suggest a novel mechanism involving an unprecedented and complex RhI/RhIII/RhI/RhIII redox cycle involving the formation of an unusual strained 7-membered rhodacyclic allene intermediate and a RhIII-stabilized 6-membered ring allene complex.
In some applications, this compound(16400-32-1)Application of 16400-32-1 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.
Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics