1,4-Reduction of α,β-unsaturated ketones catalyzed by tetraarylhydrophosphoranes

We demonstrate that a pentavalent phosphorous compound, tetraarylhydrophosphorane, is capable of catalyzing 1,4-reduction of α,β-unsaturated ketones in the presence of pinacolborane. The structure and properties of tetraarylhydrophosphorane and its participation in the chemoselective 1,4-reduction were elucidated through both experimental and theoretical approaches., , They are collected through data acquisition on the NMR spectrometers., # README: 1,4-Reduction of α,β-Unsaturated Ketones Catalyzed by Tetraarylhydrophosphoranes

## Description of the data and file structure

The uploaded zip file contains primary nuclear magnetic resonance (NMR) files for compounds **P2**, **PH2**, **1b**-**1w**, **1y**, **2a**-**2y**, **3a**, **4a**, **5a**, and **5a’** ([https://pubs.acs.org/doi/10.1021/acs.orglett.5c02773](https://pubs.acs.org/doi/10.1021/acs.orglett.5c02773)). These compounds are classified into the “Catalyst”, “StartingMaterial”, and \"Product\" folders. The detailed contents of each folder are provided in the section below. Each compound folder contains ¹H NMR and ¹³C NMR data; for some compounds, ¹⁹F NMR and ³¹P NMR data are also included. The filenames follow the format “CompoundName_Nuclear.”

The NMR data are stored in one of the following formats:

• “.jdf” (JEOL NMR instrument)

• A single folder containing “fid” (the main data file) and auxiliary files (Bruker NMR instrument)

To view the NMR spectrum, you nee...