Levina II, Tarasov VF, Podrugina TA, Nekipelova TD. CIDNP as a tool to unveil the reaction mechanism: interaction of mixed phosphonium–iodonium ylide with
p-methoxyphenylacetylene.
RSC Adv 2019;
9:26219-26223. [PMID:
35531024 PMCID:
PMC9070124 DOI:
10.1039/c9ra05697a]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 08/14/2019] [Indexed: 12/03/2022] Open
Abstract
In situ acquisition of the reaction between benzoyl phosphonium–iodonium ylide and p-methoxyphenylacetylene in an NMR spectrometer reveals the CIDNP effect in 31P and 1H NMR spectra of major products, substituted furan (emission) and phosphonium salt (enhanced absorption). The mechanism of products formation via radical pairs is discussed.
CIDNP in 31P NMR spectra of major products in the course of the reaction between phosphonium–iodonium ylide and p-methoxyphenylacetylene reveals the mechanism of products formation via radical pair.![]()
Collapse