Heteroannulation of Arynes with α-Bromodifluorohydroxamates: An Efficient and General Approach to Access 2,2-Difluoro Indoxyls.
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DOI: 10.1021/acs.orglett.4c01720
Abstract: Herein, we report the first general approach to access N-alkoxy-2,2-difluoro indoxyls, via formal 3 + 2 cycloaddition of aryne and (putative) fluorinated-aza-oxyallyl cation. This transition-metal/oxidant-free transformation occurs under mild reaction conditions with a short reaction… read more here.
Keywords: approach access; general approach; difluoro indoxyls;
Diastereofacial π-Stacking as an Approach To Access an Axially Chiral P,N-Ligand for Asymmetric Catalysis
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DOI: 10.1021/acscatal.6b03427
Abstract: A phosphino-imidazoline (PHIM) ligand possessing axial chirality is prepared in a straightforward five-step synthesis. Configurational stability around the chiral axis is achieved by the diastereofacial π-stacking between the pentafluorophenyl and the naphthalene rings. In particular,… read more here.
Keywords: catalysis diastereofacial; approach access; ligand; stacking approach ... See more keywords
A Versatile Approach to Access Trimetallic Complexes Based on Trisphosphinite Ligands
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DOI: 10.3390/molecules25030593
Abstract: A straightforward method for the preparation of trisphosphinite ligands in one step, using only commercially available reagents (1,1,1-tris(4-hydroxyphenyl)ethane and chlorophosphines) is described. We have made use of this approach to prepare a small family of… read more here.
Keywords: trisphosphinite ligands; access trimetallic; versatile approach; approach access ... See more keywords