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An Unprecedented Ga/P Frustrated Lewis Pair: Synthesis, Characterization, and Reactivity
Author(s) -
Sun Xiong,
Zhu Qin,
Xie Zhuoyi,
Su Wei,
Zhu Jun,
Zhu Congqing
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201904081
Subject(s) - frustrated lewis pair , chemistry , lewis acids and bases , reactivity (psychology) , regioselectivity , stereochemistry , electron pair , gallium , transition metal , computational chemistry , organic chemistry , catalysis , electron , medicine , physics , alternative medicine , pathology , quantum mechanics
Frustrated Lewis pairs (FLPs) represent a new paradigm of main‐group chemistry. The Lewis acidic centers in FLP chemistry are typically B and Al atoms in the studies reported over the past decade, and most of them are tri‐coordinated with strong electron‐withdrawing groups. Herein, a Ga/P system is reported which contains an unprecedented four‐coordinated Lewis acidic Ga center. This Ga/P species performs classical addition reactions toward heterocumulenes, alkyne, diazomethane, and transition metal complex. Regioselective formation of the products can be rationalized by DFT calculations. The penta‐coordinated gallium atom center in these products is rare in the FLP chemistry. This study enriches the diversity of FLPs and demonstrates that a four‐coordinated Lewis acidic site with a donor‐acceptor bond can also be FLP active.