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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Reactions of substituted pyridines with electrophilic boranes
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Reactions of substituted pyridines with electrophilic boranes

机译:取代吡啶与亲电硼烷的反应

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摘要

The lutidine derivative (2,6-Me _2)(4-Bpin)C _5H _2N when combined with B(C _6F _5) _3 yields a frustrated Lewis pair (FLP) which reacts with H _2 to give the salt [(2,6-Me _2)(4-Bpin)C _5H _2NH][HB(C _6F _5) _3] (1). Similarly 2,2′-(C _5H _2(4,6-Me _2)N) _2 and (4,4′-(C _5H _2(4,6-Me _2)N) _2 were also combined with B(C _6F _5) _3 and exposed to H _2 to give [(2,2′-HN(2,6-Me _2)C _5H _2C _5H _2(4,6-Me _2)N][HB(C _6F _5) _3] (2) and [(4,4′-HN(2,6-Me _2)C _5H _2C _5H _2(2,6-Me _2)N] [HB(C _6F _5) _3] (3), respectively. The mono-pyridine-N-oxide 4,4′-N(2,6-Me _2)C _5H _2C _5H _2(2,6-Me _2)NO formed the adduct (4,4′-N(2,6-Me _2)C _5H _2C _5H _2(2,6-Me _2)NO)(B(C _6F _5) _3) (4) which reacts further with B(C _6F _5) _3 and H _2 to give [(4,4′-HN(2,6-Me _2)C _5H _2C _5H _2(2,6-Me _2)NO)B(C _6F _5) _3] [HB(C _6F _5) _3] (5). In a related sense, 2-amino-6-CF _3-C _5H _3N reacts with B(C _6F _5) _3 to give (C _5H _3(6-CF _3)NH)(2-NH(B(C _6F _5) _3)) (6). Similarly, the species, 2-amino-quinoline, 8-amino-quinoline and 2-hydroxy-6-methyl-pyridine were reacted with B(C _6F _5) _3 to give the products as (C _9H _6NH)(2-NHB(C _6F _5) _3) (7), (C _9H _6N)(8-NH _2B(C _6F _5) _3) (8) and (C _5H _3(6-Me)NH)(2- OB(C _6F _5) _3) (9), respectively; while 2-amino-6-picoline, 2-amino-6-CF _3-pyridine, 2-amino-quinoline, 8-amino-quinoline and 2-hydroxy-6-methyl-pyridine react with ClB(C _6F _5) _2 to give the species (C _5H _3(6-R)NH)(2-NH(ClB(C _6F _5) _2)) (R = Me (10), R = CF _3 (11)) (C _9H _6NH)(2-NH(ClB(C _6F _5) _2)) (12), (C _9H _6N)(8-NH _2ClB(C _6F _5) _2) (13) and (C _5H _3(6-Me)NH)(2-OClB(C _6F _5) _2) (14), respectively. In a similar manner, 2-amino-6-picoline and 2-amino-quinoline react with B(C _6F _5) _2H to give (C _5H _3(6-Me)NH)(2- NH(HB(C _6F _5) 2)) (15) and (C _9H _6NH)(2-NH(HB(C _6F _5) _2)) (16). The corresponding reaction of 8-amino-quinoline yields (C _9H _6N)(8-NHB(C _6F _5) _2) (17). In a similar fashion, reaction of 2-amino-6-CF 3-pyridine resulted in the formation of (18) formulated as (C _5H _3(6-CF _3)N)(2-NH(B(C _6F _5) _2). Finally, treatment of 15 with iPrMgCl gave (C _9H _6N)(2-NH(B(C _6F _5) _2)) (19). Crystallographic studies of 1, 2, 4, 6, 7, 10, 11, 12 and 15 are reported.
机译:当与B(C _6F _5)_3结合时,二甲基吡啶衍生物(2,6-Me _2)(4-Bpin)C _5H _2N产生受阻的Lewis对(FLP),该对与H _2反应生成盐[(2, 6-Me _2)(4-Bpin)C _5H _2NH] [HB(C _6F _5)_3](1)。类似地,2,2'-(C _5H _2(4,6-Me _2)N)_2和(4,4'-(C _5H _2(4,6-Me _2)N)_2也与B(C _6F _5)_3并暴露于H _2以得到[(2,2'-HN(2,6-Me _2)C _5H _2C _5H _2(4,6-Me _2)N] [HB(C _6F _5)_3 ](2)和[(4,4'-HN(2,6-Me _2)C _5H _2C _5H _2(2,6-Me _2)N] [HB(C _6F _5)_3](3) 。单吡啶-N-氧化物4,4'-N(2,6-Me _2)C _5H _2C _5H _2(2,6-Me _2)NO形成加合物(4,4'-N(2, 6-Me _2)C _5H _2C _5H _2(2,6-Me _2)NO)(B(C _6F _5)_3)(4)与B(C _6F _5)_3和H _2进一步反应得到[( 4,4'-HN(2,6-Me _2)C _5H _2C _5H _2(2,6-Me _2)NO)B(C _6F _5)_3] [HB(C _6F _5)_3](5)。在相关意义上,2-氨基-6-CF _3-C _5H _3N与B(C _6F _5)_3反应得到(C _5H _3(6-CF _3)NH)(2-NH(B(C _6F _5 )_3))(6)。同样,使2-氨基喹啉,8-氨基喹啉和2-羟基-6-甲基吡啶类与B(C _6F _5)_3反应,得到为( C _9H _6NH)(2-NHB(C _6F _5)_3)(7),(C _9H _6N)(8-NH _2B(C _6F _5)_3)(8)和(C _5H _3(6-Me)NH )(2- OB(C _6F _5)_3)(9); 2-氨基-6-甲基吡啶,2-氨基-6-CF _3-吡啶,2-氨基喹啉,8-氨基喹啉和2-羟基-6-甲基吡啶与ClB(C _6F _5)_2反应给出物质(C _5H _3(6-R)NH)(2-NH(ClB(C _6F _5)_2))(R = Me(10),R = CF _3(11))(C _9H _6NH) (2-NH(ClB(C _6F _5)_2))(12),(C _9H _6N)(8-NH _2ClB(C _6F _5)_2)(13)和(C _5H _3(6-Me)NH) (2-OClB(C _6F _5)_2)(14)。以类似的方式,2-氨基-6-甲基吡啶和2-氨基喹啉与B(C _6F _5)_2H反应生成(C _5H _3(6-Me)NH)(2- NH(HB(C _6F _5 )2))(15)和(C _9H _6NH)(2-NH(HB(C _6F _5)_2))(16)。 8-氨基喹啉的相应反应生成(C _9H _6N)(8-NHB(C _6F _5)_2)(17)。以类似的方式,2-氨基-6-CF 3-吡啶的反应导致形成(18),配制成(C _5H _3(6-CF _3)N)(2-NH(B(C _6F _5) _2)。最后,用iPrMgCl处理15得到(C _9H _6N)(2-NH(B(C _6F _5)_2))(19)。1,2,4,6,7,10,11的晶体学研究,报告了12和15。

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