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
中科院分区:
文献类型:
--
作者:
G. Bressan;M. Farina;G. Natta
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.