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Synthesis and Characterization of New Dicarboxylatotetra-N-Butyl-Di-Stannoxanes Dimers Formed with N-Maleimido-Protected Amino Acids

机译:N-马来酰亚胺基保护的氨基酸形成的新的二羧基硅四-N-丁基-二锡氧烷类二聚体的合成与表征

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摘要

The reaction of four different N-maleoyl-protected amino acids with Bu_2SnO in toluene produced in good yield four new dimeric dicarboxylatotetra-n-butyl-di-stannoxanes with the general composition ([Bu_2Sn(OCOR)]_2O)_2 (where R: CH_3CH_2NC_2O_2C_2H_2 1; (CH)CH_2C_6H_5NC_2O_2C_2H_2 2; C_6H_(10)CH_2NC_2O_2C_2H_2 3; C_6H_4NC_2O_2C_2H_2 4). The complexes were characterized by FTIR, ~(119)Sn Mossbauer, multinuclear NMR (~1H, ~(13)C, ~(119)Sn, ~(119)Sn{~1H} and ~(119)Sn{~(13)C}) spectroscopic methods. In addition, their synthesis was also confirmed by MS and elemental analyses.
机译:四种不同的N-马来酰基保护的氨基酸与Bu_2SnO在甲苯中的反应可产生高收率的四种新的二聚二羧基二羧基四-正丁基-二锡氧烷([Bu_2Sn(OCOR)] _ 2O)_2(其中R: CH_3CH_2NC_2O_2C_2H_2 1;(CH)CH_2C_6H_5NC_2O_2C_2H_2 2; C_6H_(10)CH_2NC_2O_2C_2H_2 3; C_6H_4NC_2O_2C_2H_2 4)。通过FTIR,〜(119)Sn Mossbauer,多核NMR(〜1H,〜(13)C,〜(119)Sn,〜(119)Sn {〜1H}和〜(119)Sn {〜( 13)C})光谱方法。另外,它们的合成也通过MS和元素分析得到证实。

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