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Trapping Reactive Metal–Carbene Complexes by a Bis‐Pocket Porphyrin: X‐ray Crystal Structures of RuCHCO 2 Et and trans ‐[Ru(CHR)(CO)] Species and Highly Selective Carbenoid Transfer Reactions
Author(s) -
Deng QingHai,
Chen Jian,
Huang JieSheng,
Chui Stephen SinYin,
Zhu Nianyong,
Li GuangYu,
Che ChiMing
Publication year - 2009
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.200901895
Subject(s) - porphyrin , carbene , chemoselectivity , steric effects , ligand (biochemistry) , aryl , ethyl diazoacetate , x ray , ruthenium , chemistry , crystal (programming language) , stereochemistry , catalysis , photochemistry , organic chemistry , physics , computer science , alkyl , biochemistry , receptor , quantum mechanics , cyclopropanation , programming language
What's in my pockets? By employing Suslick's bis‐pocket porphyrin (ttppp), a reactive MCHCO 2 Et complex and a trans ‐[M(CHR)(CO)] (M=Ru) complex have been structurally characterized by X‐ray crystal analysis. The sterically encumbered ttppp ligand has a significant impact on both the diastereoselectivity and chemoselectivity in metalloporphyrin‐catalyzed reactions of ethyl diazoacetate with conjugated aryl dienes.