Cascade chemistry in azacryptand cages: bridging carbonates and methylcarbonates

被引:69
作者
Dussart, Y [1 ]
Harding, C
Dalgaard, P
McKenzie, C
Kadirvelraj, R
McKee, V
Nelson, J
机构
[1] Open Univ, Dept Chem, Milton Keynes MK7 6AA, Bucks, England
[2] Odense Univ, Kemisk Inst, DK-5230 Odense M, Denmark
[3] Univ Loughborough, Dept Chem, Loughborough LE11 3TU, Leics, England
[4] Univ Canterbury, Dept Chem, Christchurch 1, New Zealand
[5] Univ Ulster, Sch Biomed Sci, Coleraine BT52 1SA, Londonderry, North Ireland
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 2002年 / 08期
关键词
D O I
10.1039/b110449g
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The different tendencies of dinuclear azacryptates of the m-CH2C6H4CH2 and 2,5-furano-spaced hosts L-1 and L-2 to catalyse CO2 uptake-reactions within these sterically-protected host cavities are examined. Bridging methylcarbonates are generated catalytically upon exposure of methanol solutions of L-1, but not L-2, di-transition cation cryptates to atmospheric CO2. X-Ray crystallographic structures of homodinuclear mu-carbonato cryptates of both ligands and mu-methylcarbonato cryptates of L-1 with later first transition series cations are reported. ESI-MS spectra show loss of H2CO3 from mu-carbonato cryptates in collision activation experiments.
引用
收藏
页码:1704 / 1713
页数:10
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