Improved Air‐Stable Solid Aromatic and Heterocyclic Zinc Reagents by Highly Selective Metalations for Negishi Cross‐Couplings
摘要：
Directed metalation using TMPMgClLiCl (TMP=2,2,6,6-tetramethylpiperidide) and subsequent transmetalation with Zn(OPiv)2 leads to aryl and heteroaryl zinc pivalates. After solvent evaporation, easy-to-handle fine powders are obtained that retain most of their activity (>85%) when exposed to air for 4h. They smoothly undergo Negishi cross-couplings, and technical-grade solvents can be used without significant loss of yield.
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DOI：
10.1002/anie.201204526
被引量：
年份：
2012
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