Synthesis of poly(biphenylene ketone)s via palladium catalyzed cross‐coupling reactions with ketone diacetals
Synthesis of poly(biphenylene ketone)s via palladium catalyzed cross‐coupling reactions with ketone diacetals
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钯催化与酮二缩醛的交叉偶联反应合成聚联苯酮
DOI：
10.1002/pola.1994.080321311
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Jia‐Ni Lu
中科院分区：
文献类型：
--
作者：
M. Bochmann;Jia‐Ni Lu
二溴二苯甲酮二缩醛（BrC 6 H4）2C（OR），进行交叉偶联反应，（Bu 3SnC 6 H4）2 O在钯催化剂存在下反应，得到聚（二缩醛醚），其分子量反映了作为二缩醛前体的函数的生长聚合物链的溶解度变化，R= Me< 1/2CH 2CH 2 < 1/2CH 2CHMe，并且显著高于由二溴二苯甲酮衍生的聚合物的那些。合成了新型的二缩醛衍生物双锌试剂，并将其作为有机金属偶联试剂与一系列二溴芳烃偶联，合成了一系列以前难以合成的聚联苯酮和聚联苯酮砜
Dibromobenzophenone diacetals (BrC 6 H 4 ) 2 C (OR), undergo cross-coupling reactions with (Bu 3 SnC 6 H 4 ) 2 O in the presence of palladium catalysts to give poly(diacetal ether)s whose molecular weights reflect the solubility changes of the growing polymer chains as a function of the diacetal precursors, R= Me< 1/2 CH 2 CH 2 < 1/2 CH 2 CHMe and are significantly higher than those of polymers derived from dibromobenzophenone. New di-zinc reagents based on diacetal derivatives were synthesized and used as organometallic coupling reagents with a range of dibromoarenes, resulting in a series of previously inaccessible poly(biphenylene ketone)s and poly(biphenylene ketone sulfone)s