New distannanes containing the chiral 2-(4-isopropyl-2-oxazolinyl)-5-phenyl ligand期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

New distannanes containing the chiral 2-(4-isopropyl-2-oxazolinyl)-5-phenyl ligand

Authors:	Leszek Rupnicki Anita St?pień Zbigniew Pianowski

Affiliation:	^a Department of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw, Poland ^b Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland ^c Department of Chemistry, Warsaw University of Technology, Noakowskiego 3,00-664 Warsaw, Poland ^d Pharmaceutical Research Institute, Rydygiera 8, 01-793, Warsaw, Poland

Abstract:	The N-coordinated tin hydrides containing the chiral 2-(4-isopropyl-2-oxazolinyl)-5-phenyl ligand in the presence of catalytic amounts of tetrakis(triphenylphosphine)palladium gave the corresponding distannanes in good yields. The distannanes have been fully characterized by means of the ¹H, ¹³C, ¹⁵N and ¹¹⁷Sn NMR measurements. The J(¹⁵N-^117/119Sn), J(¹¹⁷Sn-¹¹⁹Sn) couplings and single-crystal X-ray analysis of distannane 3 revealed a tendency towards penta-coordination at the tin center as a result of the Sn-N interaction.

Keywords:	Distannanes NMR spectroscopy Palladium Sn-N coordination Tin hydrides
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