Increasing steric demand through flexible bulk - primary phosphanes with 2,6-bis(benzhydryl)phenyl backbones

Dalton Transactions : an International Journal of Inorganic Chemistry
Jonas BresienAlexander Villinger

Abstract

Sterically demanding primary phosphanes of the type RBhp-PH2 (Bhp = 2,6-bis(benzhydryl)-4-R-phenyl; R = Me, tBu) could be prepared in high yields by modification of synthetic protocols of established bulky phosphanes. The Bhp substituents simultaneously exhibit extensive steric expansiveness and high degrees of flexibility compared to other 2,6-substituted phenyl backbones, enabling a range of different-sized atoms and functionalities to be located between the flanking benzhydryl moieties. Therefore, it was also possible to isolate and fully characterize several halogenated precursors, a diazonium intermediate, as well as a dihalostibane.

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Citations

Mar 4, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Beate G StellerRoland C Fischer
Apr 17, 2021·Chemical Communications : Chem Comm·Harish S KunchurMaravanji S Balakrishna

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