摘要
本文应用加压原位核磁共振技术,在反应温度50～70℃、反应压力1.0～2.0 MPa,氘代苯为溶剂、偶氮二异丁腈为引发剂的条件下,考察了磷化氢与直链烯烃1,4-戊二烯,1,7-辛二烯及1-十八烯的反应.实验结果表明,磷化氢与1,4-戊二烯可以生成6员膦杂环己烷,与1,7-辛二烯不易生成9员膦杂环壬烷,与1-十八烯主要生成伯膦产物.原位^(31)PNMR谱的研究也表明,磷化氢与直链烯烃反应为串行机理.
Under the following reaction conditions: temperature 50～70℃, pressure 1.0～2.0MPa, solvent C_6D_6, initiator AIBN, the reactions of 1, 4-pentadiene, 1, 7-octadiene and 1-decaoctene with PH_3 were studied by using the pressurized in-situ NMR technique. Experimental results indicated that the six-membered phosphorinane is formed by the addition of PH_3 to 1, 4-pentadiene, phosphonane can't be obtained by 1, 7-octadiene, and primary phosphine is the predominant product in the reaction of PH_3 with 1-decaoctene. The results obtained by in-sitw ^(31)PNMR spectra also indicated that the reactions of PH_3 with linear olefins proceed with a sequential mechanism.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1993年第8期815-818,共4页
Acta Chimica Sinica
