Photoinduced Bisphosphination of Alkynes with Phosphorus Interelement Compounds and Its Application to Double-Bond Isomerization

The addition of interelement compounds with heteroatom-heteroatom single bonds to carbon-carbon unsaturated bonds under light irradiation is believed to be an atomically efficient method to procure materials with carbon-heteroatom bonds. In this study, we achieved the photoinduced bisphosphination o...

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Main Authors: Yuki Yamamoto, Ryo Tanaka, Shintaro Kodama, Akihiro Nomoto, Akiya Ogawa
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/4/1284
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author Yuki Yamamoto
Ryo Tanaka
Shintaro Kodama
Akihiro Nomoto
Akiya Ogawa
author_facet Yuki Yamamoto
Ryo Tanaka
Shintaro Kodama
Akihiro Nomoto
Akiya Ogawa
author_sort Yuki Yamamoto
collection DOAJ
description The addition of interelement compounds with heteroatom-heteroatom single bonds to carbon-carbon unsaturated bonds under light irradiation is believed to be an atomically efficient method to procure materials with carbon-heteroatom bonds. In this study, we achieved the photoinduced bisphosphination of alkynes using the phosphorus interelement compound, tetraphenyldiphosphine monosulfide (<b>1</b>), to stereoselectively obtain the corresponding (<i>E</i>)-<i>vic</i>-1,2-bisphosphinoalkenes, which are important transition-metal ligands. The bisphosphination reaction was performed by mixing <b>1</b> and various alkynes and then exposing the mixture to light irradiation. Optimization of the conditions for the bisphosphination reaction resulted in a wide substrate range and excellent <i>trans</i>-selectivity. Moreover, the completely regioselective introduction of pentavalent and trivalent phosphorus groups to the terminal and internal positions of the alkynes, respectively, was achieved. We also found that the novel double-bond isomerization reaction of the synthesized bisphosphinated products occurred with a catalytic amount of a base under mild conditions. Our method for the photoinduced bisphosphination of carbon-carbon unsaturated compounds may have strong implications for both organic synthesis and organometallic and catalyst chemistry.
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spelling doaj.art-0b836bb605c34b758f91b342e97fbb622023-11-23T21:21:35ZengMDPI AGMolecules1420-30492022-02-01274128410.3390/molecules27041284Photoinduced Bisphosphination of Alkynes with Phosphorus Interelement Compounds and Its Application to Double-Bond IsomerizationYuki Yamamoto0Ryo Tanaka1Shintaro Kodama2Akihiro Nomoto3Akiya Ogawa4Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka 599-8531, JapanDepartment of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka 599-8531, JapanDepartment of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka 599-8531, JapanDepartment of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka 599-8531, JapanDepartment of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka 599-8531, JapanThe addition of interelement compounds with heteroatom-heteroatom single bonds to carbon-carbon unsaturated bonds under light irradiation is believed to be an atomically efficient method to procure materials with carbon-heteroatom bonds. In this study, we achieved the photoinduced bisphosphination of alkynes using the phosphorus interelement compound, tetraphenyldiphosphine monosulfide (<b>1</b>), to stereoselectively obtain the corresponding (<i>E</i>)-<i>vic</i>-1,2-bisphosphinoalkenes, which are important transition-metal ligands. The bisphosphination reaction was performed by mixing <b>1</b> and various alkynes and then exposing the mixture to light irradiation. Optimization of the conditions for the bisphosphination reaction resulted in a wide substrate range and excellent <i>trans</i>-selectivity. Moreover, the completely regioselective introduction of pentavalent and trivalent phosphorus groups to the terminal and internal positions of the alkynes, respectively, was achieved. We also found that the novel double-bond isomerization reaction of the synthesized bisphosphinated products occurred with a catalytic amount of a base under mild conditions. Our method for the photoinduced bisphosphination of carbon-carbon unsaturated compounds may have strong implications for both organic synthesis and organometallic and catalyst chemistry.https://www.mdpi.com/1420-3049/27/4/1284interelement compoundsphotoinduced bisphosphinationradical reactionstereoselective synthesisdouble-bond isomerization
spellingShingle Yuki Yamamoto
Ryo Tanaka
Shintaro Kodama
Akihiro Nomoto
Akiya Ogawa
Photoinduced Bisphosphination of Alkynes with Phosphorus Interelement Compounds and Its Application to Double-Bond Isomerization
Molecules
interelement compounds
photoinduced bisphosphination
radical reaction
stereoselective synthesis
double-bond isomerization
title Photoinduced Bisphosphination of Alkynes with Phosphorus Interelement Compounds and Its Application to Double-Bond Isomerization
title_full Photoinduced Bisphosphination of Alkynes with Phosphorus Interelement Compounds and Its Application to Double-Bond Isomerization
title_fullStr Photoinduced Bisphosphination of Alkynes with Phosphorus Interelement Compounds and Its Application to Double-Bond Isomerization
title_full_unstemmed Photoinduced Bisphosphination of Alkynes with Phosphorus Interelement Compounds and Its Application to Double-Bond Isomerization
title_short Photoinduced Bisphosphination of Alkynes with Phosphorus Interelement Compounds and Its Application to Double-Bond Isomerization
title_sort photoinduced bisphosphination of alkynes with phosphorus interelement compounds and its application to double bond isomerization
topic interelement compounds
photoinduced bisphosphination
radical reaction
stereoselective synthesis
double-bond isomerization
url https://www.mdpi.com/1420-3049/27/4/1284
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AT shintarokodama photoinducedbisphosphinationofalkyneswithphosphorusinterelementcompoundsanditsapplicationtodoublebondisomerization
AT akihironomoto photoinducedbisphosphinationofalkyneswithphosphorusinterelementcompoundsanditsapplicationtodoublebondisomerization
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