NMR Studies of 1-tert-Butyl-3-methyl-2,4-bis(2,4,6-tri-tert-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl

Masaaki Yoshifuji Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama, USA

Stefan T. Osborn Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama, USA

Anthony J. Arduengo III Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama, USA

Kenneth A. Belmore Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama, USA

Shigekazu Ito Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookayama, Tokyo, Japan

Abstract

Intensive ¹H-, ¹³C-, and ³¹P-NMR studies of 1-tert-butyl-3-methyl-2,4-bis(2,4,6-tri-tert-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl were perfomed to reveal several unusual coupling constants.

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Acknowledgments

We thank Professor Russell Timkovich, The University of Alabama, for valuable comments on NMR measurement and interpretations.

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NMR Studies of 1-tert-Butyl-3-methyl-2,4-bis(2,4,6-tri-tert-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl

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NMR Studies of 1-tert-Butyl-3-methyl-2,4-bis(2,4,6-tri-tert-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl

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