Optically active polymers: The asymmetric synthesis of polynaphthofurans

Optically active polymers: The asymmetric synthesis of polynaphthofurans
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光学活性聚合物:聚萘呋喃的不对称合成

DOI:
10.1002/macp.1966.020930124
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发表时间:
1966
影响因子:
2.5
通讯作者:
G. Natta
G. Natta
中科院分区:
化学4区
文献类型:
--
作者:
G. Bressan;M. Farina;G. Natta

文献摘要

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相似文献

在聚苯~呋喃~“)的不对称合成研究中取得成果之后,我们研究了其他不饱和环醚的不对称聚合。在萘并呋喃的情况下获得的结果似乎值得报道,这既是由于其聚合过程的立体特异性和选择性,也是由于相关聚合物的特殊性质。与苯并呋喃一样,这些单体不是不对称的,只有当分子反应时,才会沿着主链形成一系列不对称碳原子因此,我们获得了不同的有规立构聚萘呋喃,具有结晶度和高比旋转能力。
After the results achieved in the study of the asymmetric synthesis of polyben~ ofuran~”), we examined the asymmetric polymerization of other unsaturated cyclic ethers. The results obtained in the case of-naphthofurans seem worthy to be reported, both owing to the stereospecificity and selectivity of their polymerization process, and to the peculiar properties of the relating polymers. Like benzofuran, these monomers are not dissymmetric and it is only when the molecule reacts that a sequence of asymmetric carbon atoms forms along the main chain of the polymer1). We have thus obtained different stereoregular polynaphthofurans, exhibiting both crystallinity and high specific rotatory powers.