Kusy R, Grela K. Protocol for (E)-selective semihydrogenation of alkynes using iridium-based catalyst.
STAR Protoc 2023;
4:102579. [PMID:
37733598 PMCID:
PMC10519852 DOI:
10.1016/j.xpro.2023.102579]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/10/2023] [Accepted: 08/29/2023] [Indexed: 09/23/2023] Open
Abstract
In this protocol, we describe highly (E)-selective alkyne semihydrogenation employing commercially available iridium complex and a bidentate phosphine ligand. We provide steps for (E)-stilbene synthesis, remaining formic acid neutralization, and determination of the (Z)/(E) ratio using gas chromatography analysis. We then detail (E)-stilbene purification using a short pad of silica and NMR analysis. The protocol is compatible with a wide range of functionalities and different types of alkynes. For complete details on the use and execution of this protocol, please refer to Kusy et al. (2022).1.
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