Synthesis of P‐Stereogenic Tetraphosphacrowns. Issue 12 (15th October 2015)

• Record Type: Journal Article
• Authors: Kato, Ryosuke; Morisaki, Yasuhiro; Chujo, Yoshiki
• Is Part Of: Asian journal of organic chemistry. Volume 4:Issue 12(2015:Dec.)
• Page Start: 1410
• Page End: 1416
• Publication Date: 2015-10-15
• Subjects: chirality -- crown ethers -- P-stereogenic -- phosphines -- tetraphosphacrowns; Chemistry, Organic -- Periodicals; Organic compounds -- Synthesis -- Periodicals; 547.005
• DOI: 10.1002/ajoc.201500343
• Languages: English
• ISSNs: 2193-5807

Abstract

Abstract: Synthetic routes to enantiopure P‐stereogenic tetraphosphacrowns, containing four chiral phosphorus atoms, using a P‐stereogenic secondary bisphosphine are reported. 18‐Tetraphosphacrown‐6 and 24‐tetraphosphacrown‐8 derivatives were prepared by a single‐step and multistep method, respectively, and their characterizations are described in detail. Removal of boranes from the 24‐tetraphosphacrown‐8 derivative and subsequent complexation with platinum(II) are also described. Abstract : Chirali‐P : P‐Stereogenic tetraphosphacrowns containing four P‐stereogenic centers in the ring were synthesized by using a P‐stereogenic secondary bisphosphine as a key building block.