P–Cl bond-induced lactamization of 2(2′-hydroxyl)phenyloxazoline to form a cyclic phosphinite, 3-(2-chloroethyl)-2-phenyl-2H-benzo[e][1,3,2]oxaza-phosphinin-4(3H)-one: synthesis, structural studies and transition metal complexes
作者:Bimba Chaubey、Shaikh M. Mobin、Maravanji S. Balakrishna
DOI:10.1039/c3dt52223g
日期:——
[Ru(η6-Cymene)Cl2]2, [Pd(COD)Cl2] and [Pd(η3-C3H5)Cl]2 resulted in the formation of [RuCl2(η6-cymene)(L)] (6), [PdCl2L}2] (7), and [Pd(η3-C3H5)Cl(L)] (8), respectively. The compound 2 obtained in the 2 : 1 reaction when treated with [Pd(η3-C3H5)Cl]2 gave the same palladium complex 8 (referred to as 9a), but co-crystallized with bis(oxazolyl)palladacycle (9b) as confirmed by single crystal X-ray analysis
2(2'-羟基)苯基恶唑啉(之间的等摩尔反应1)和PPhCl 2在三乙胺存在下,得到一个意想不到的环状产物,苯基苯并oxazaphosphininone(2),而不是简单的次亚膦酸酯衍生物甲。1与PPhCl 2之间以2:1的比例进行的类似反应也得到相同的产物2,但有1当量的2(2'-羟基)苯基恶唑啉(1)尚未反应。环状产物2的形成是由于P–Cl键诱导的恶唑啉开环,随后形成了六元γ-内酰胺型产物3-(2-氯乙基)-2-苯基-2 H-苯并[ e ] [1,3,2]草氮磷膦-4(3 H)-one(2也称为L)。2与H 2 O 2,元素硫或元素硒的反应以定量收率得到了相应的硫族化物LE(3,E = O; 4,E = S; 5,E = Se)。的治疗2用的[Ru(η 6 -Cymene)氯2 ] 2,[钯(COD)氯2 ]和[将Pd(η 3 -C 3 H ^ 5)CL] 2导致将[RuCl的形成2(η