Cyclodimerization and cyclotrimerization of isocyanates promoted by one praseodymium benzenethiolate complex [Pr(SPh)3(THF)3]

DOI: 10.1016/j.tet.2010.12.069

Source and publish data:

Tetrahedron p. 1530 - 1535 (2011)

Update date:2022-08-04

Topics:

Authors:

Wang, He-Ming

Li, Hong-Xi

Yu, Xiang-Yang

Ren, Zhi-Gang

Lang, Jian-Ping

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Article abstract of DOI:10.1016/j.tet.2010.12.069

The cyclotrimerization of aryl isocyanates and the cyclodimerization of alkyl isocyanates initiated by one praseodymium benzenethiolate complex [Pr(SPh)₃(THF)₃] were investigated. Comparative runs with [Pr(SPh)₃(THF)₃] and its precursor Pr[(Me ₃Si)₂N]₃ showed that the former has the advantages of a higher selectivity toward isocyanates, easy preparation, low catalyst loading, high conversion as well as mild reaction conditions.

Full text of DOI:10.1016/j.tet.2010.12.069

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