SYNTHESIS AND STRUCTURE OF THE MESOCYCLIC COMPOUNDS, 5-PHENYL-l-THIA-5-PHOSPHACYCLOOCTANE,CIS-ANDTRANS-1,5-DIPHENYL-1,5-DIPHOSPHACYCLOOCTANE AND THEIR PHOSPHINE OXIDES

Autor: Susan D. Toto, W. Kenneth Musker, Parimal K. Bharadwaj, Joyce Takahashi Doi, Brian W. Arbuckle
Rok vydání: 1991
Předmět:
Zdroj: Phosphorus, Sulfur, and Silicon and the Related Elements. 56:27-38
ISSN: 1563-5325
1042-6507
DOI: 10.1080/10426509108038063
Popis: Three 1.5-disubstituted eight-membered ring meSocycles, 5-phenyl-l-thia-5-phosphacyclooctane, 2, cis-and trans-1,5-diphenyl-1,5-diphosphacyclooctane. 5a and 5b, have been synthesized. The diastereomers 5a and 5b were separated by preparative HPLC and the stereochemical assignments confirmed by an X-ray crystal structure of 5b. The X-ray crystal structures of 5-phenyl-1-thia-5-phosphacyclooctane 5-oxide, 1, and trans-l,5-diphenyl-l,5-diphosphacyclooctane 1.5-dioxide, 3b, are also reported. MeSocycles 1, 3b and 5b are in the boat-chair conformation and are devoid of any indications of transannular interactions.
Databáze: OpenAIRE