OEHME H.; LEISSRING E., TETRAHEDRON, 1981, 37, NO 4, 753-759
作者:OEHME H.、 LEISSRING E.
DOI:——
日期:——
Zur reaktion primärer and sekundärer phosphine mit aromatischen aldehyden und alkoholen
作者:H. Oehme、E. Leissring
DOI:10.1016/s0040-4020(01)97693-8
日期:1981.1
PH-Phosphines react with aromatic aldehydes in an alcohol under P-C-O-bond formation to give α-alcoxy benzylphosphines R2P-CH(Ph)-OR' or R-P[CH(Ph)-OR']2 resp. In case of 4-dimethylaminobenzaldehyde or 2,4-dimethoxybenzaldehyde with diphenylphosphine or phenyl-benzylphosphine benzylidenediphosphine of the type (RR'P)2CH-C6H4NMe2 and (RP'P)2CH -C6H3(OMe)3 are obtained. The phosphines prepared are characterized
PH膦在PCO键形成下与醇中的芳香醛反应,生成α-烷氧基苄基膦R 2 P-CH(Ph)-OR'或RP [CH(Ph)-OR'] 2。对于4-二甲氨基苯甲醛或2,4-二甲氧基苯甲醛与(RR'P)2 CH-C 6 H 4 NMe 2和(RP'P)2 CH -C 6 H 3(获得OMe)3。所制备的膦的特征在于其水解和氧化行为以及and盐的形成。化合物的结构由其1阐明1 H NMR谱。讨论了两种情况下涉及碳正离子过渡态的反应途径。
An Approach to the Synthesis of Platinum Complexes Containing Chiral Monodentate Phosphines with Simultaneous Regeneration of the Resolving Agent
Elution of compounds [PdCl3-ClC6H3CHNCH(Me)Ph}trans-2-PPh2(CyOH)}] 5a and [PdXC6H4CH(Me)NH2}Ph2PCH(OMe)Ph}] 6b, containing the racemic phosphines as ligands, through a SiO2 column allows the separation of the two diastereoisomers. Opticallyactive coordination complexes trans-[PtCl2Ph2PCH(OMe)Ph}2] and trans-[PtCl2Ph2PCH(OMe)Ph}(PPh3)], have been obtained by ligand transfer reactions between