Phosphorus-nitrogen compounds: Novel spirocyclic phosphazene derivatives. Structure of 3,3″-propane-1,3-diylbis[4′,4′,6′,6′- tetrachloro-3,4-dihydrospiro[1,3,2-benzoxazaphosphorine-2,2′λ 5-[4λ5,6λ5][1,3,5,2,4,6] triazatriphosphorine]]

Bilge S., Natsagdorj A., Demiriz S., Caylak N., Kilic Z., Hokelek T.

Helvetica Chimica Acta, vol.87, no.8, pp.2088-2099, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 87 Issue: 8
  • Publication Date: 2004
  • Doi Number: 10.1002/hlca.200490188
  • Journal Name: Helvetica Chimica Acta
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2088-2099
  • Ankara University Affiliated: Yes

Abstract

The reactions of N2O2-donor-type aminopodands 1-3 with trimer N3P3Cl6 led to the novel spirocyclic phosphazene derivatives 4-10 (Scheme). Compounds 4-7 and 8-10 are the first examples of the substituted spiro-ansa-spiro and spiro-bino-spiro phosphazene derivatives, respectively. The pyrrolidinyl-substituted phosphazene derivatives 7 and 10 were synthesized from 5 and 9, respectively, with an excess of pyrrolidine. The reaction of aminopodand 3 (R=(CH2)4) with N3P3Cl6 in dry THF afforded only spiro-ansa-spiro phosphazene 6. The molecular structure of compound 9 was determined by X-ray diffraction: it shows the novel spiro-bino-spiro phosphazene architecture.