Synthesis and structures of new 1,3,6,2-dioxazaborocanes containing substituents in the ocane fragment
作者:E. Kh. Lermontova、M. M. Huang、S. S. Karlov、M. V. Zabalov、A. V. Churakov、B. Neumüller、G. S. Zaitseva
DOI:10.1007/s11172-008-0259-5
日期:2008.9
exemplified by the reaction of compound 6. The structures of erythro-MeN(CH2CH2O)(CHPhCHPhO)BPh (3), threo-MeN(CH2CH2O)(CHPhCHPhO)BPh (4), erythro-MeN(CH2CH2O)(CHPhCHPhO)B(4-MeC6H4) (8), and PhCH2N(CH2CH2O)2BF (13) were established by X-ray diffraction. The coordination polyhedra of the boron atoms in these complexes can be described as distorted tetrahedra. The boron-nitrogen distances (1.705(7)–1.723(3)
新的 1,3,6,2-二氧杂硼烷 R1N(CHR3CR4R2O)(CHR6CHR5O)BX (1–11, X = Ph, 4-MeC6H4, Me; R1 = Me, PhCH2; R2, R3, R4, R5, R6 = H , Ph) 是通过芳基或甲基硼酸与二链烷醇胺的反应合成的。(Me2NCH2CH2O)3B (15) 用 MeN(CH2CH2OH)(CH2CPh2OH) 处理得到 2-[2-(二甲-乙氨基) 乙氧基]-1,3,6,2-二氧杂硼烷 (12)。合成了 2-氟-1,3,6,2-二氧杂硼烷 R1N(CHR3CHR2O)(CH2CH2O)BF (13: R1 = PhCH2, R2 = R3 = H; 14: R1 = Me, R2 = R3 = Ph, threo)通过相应二烷醇胺的双(三甲基甲硅烷基)醚与 BF3·Et2O 反应。新的硼烷可用于合成相应的锗衍生物 PhCH2N(CH2CH2O)2GeX2