title: Cyclization of hydrazones of 2-acetyl-1-naphthol and 1-acetyl-2-naphthol with triphosgene. Synthesis of Spiro naphthoxazine dimers.
abstract: Cyclization of hydrazones derived from 2-acetyl-1-naphthol and 1-acetyl-2-naphthol with triphosgene gave naphtho[1,2-e]-1,3-oxazines, naphtho[2,1-e]-1,3-oxazines or their spiro dimers depending on the molar ratio of triphosgene used for the cyclization.
authors: Department of Chemistry, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia.
authors: Abdullah Saad
authors: AS
authors: Al-Bogami
authors: Abdullah Mohammed
authors: AM
authors: Al-Majid
authors: Mohammed Ali
authors: MA
authors: Al-Saad
authors: Ahmed Amine
authors: AA
authors: Mousa
authors: Sara Abdullah
authors: SA
authors: Al-Mazroa
authors: Hamad Zaid
authors: HZ
authors: Alkhathlan
mesh_terms: D003500:Cyclization; D006835:Hydrazones / Q000138:chemical synthesis* / Q000737:chemistry*; D015394:Molecular Structure; D009284:Naphthols / Q000737:chemistry*; D010705:Phosgene / Q000031:analogs & derivatives* / Q000737:chemistry
chemical_list: D006835:Hydrazones; D009284:Naphthols; D010705:Phosgene; C029350:1-naphthol; C111044:bis(trichloromethyl) carbonate; C028405:2-naphthol