Włodarczyk K, Borowski P, Stankevič M. [1,3]/[1,4]-Sulfur atom migration in β-hydroxyalkylphosphine sulfides.
Beilstein J Org Chem 2020;
16:88-105. [PMID:
32082428 PMCID:
PMC7006489 DOI:
10.3762/bjoc.16.11]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 01/10/2020] [Indexed: 11/23/2022] Open
Abstract
β-Hydroxyalkylphosphine sulfides undergo [1,3]- or [1,4]-sulfur atom phosphorus-to-carbon migration in the presence of Lewis or Brønsted acids. The direction of sulfur atom migration depends on the type of acid used for the reaction. In the presence of a Brønsted acid, mainly [1,3]-rearrangement is observed, whereas a Lewis acid catalyzes the [1,4]-sulfur migration. To gain insight into the mechanism of these transformations, the stereochemistry of these rearrangements have been tested, along with the conduction of some control experiments and DFT calculations.
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