一般描述
Synthesis of a new series of diphosphine ligands based on 2,7-di-tert-butyl-9,9-dimethylxanthene has been reported.
应用
2,7-Di-tert-butyl-9,9-dimethylxanthene may be used in the preparation of 4,5-diamino-9,9′-dimethylxanthene.
Sigma-Aldrich西格玛奥德里奇(上海)贸易有限公司
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