title: One-pot synthesis of halogen exchanged silsesquioxanes: octakis(3-bromopropyl)octasilsesquioxane and octakis(3-iodopropyl)octasilsesquioxane.
abstract: Metal halides, solvent effects, phase transfer catalysts, alkylating agent and reaction times were found to have important roles to complete halogen exchange reactions in "one pot" synthesis, starting from octakis(3-chloropropyl)octasilsesquioxane to obtain more reactive halide compounds: octakis(3-bromopropyl)octasilsesquioxane and octakis(3-iodopropyl)octasilsesquioxane. To confirm the complete halogen exchange, the desired products were characterized by (1)H, (13)C and (29)Si NMR spectroscopy, ESI-MS, elemental analysis and single-crystal X-ray diffraction analysis.
authors.forename: Vuthichai
authors.initials: V
authors.lastname: Ervithayasuporn
authors.affiliation: Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Ratchathewi, Bangkok 10400, Thailand. vuthichai.erv@mahidol.ac.th
authors.forename: V
authors.initials: V
authors.lastname: Ervithayasuporn
authors.forename: Nuttawut
authors.initials: N
authors.lastname: Pornsamutsin
authors.forename: N
authors.initials: N
authors.lastname: Pornsamutsin
authors.forename: Pratthana
authors.initials: P
authors.lastname: Prangyoo
authors.forename: P
authors.initials: P
authors.lastname: Prangyoo
authors.forename: Kasinpoj
authors.initials: K
authors.lastname: Sammawutthichai
authors.forename: K
authors.initials: K
authors.lastname: Sammawutthichai
authors.forename: Thapakorn
authors.initials: T
authors.lastname: Jaroentomeechai
authors.forename: T
authors.initials: T
authors.lastname: Jaroentomeechai
authors.forename: Chuttree
authors.initials: C
authors.lastname: Phurat
authors.forename: C
authors.initials: C
authors.lastname: Phurat
authors.forename: Thapong
authors.initials: T
authors.lastname: Teerawatananond
authors.forename: T
authors.initials: T
authors.lastname: Teerawatananond
mesh_terms: D006219:Halogens / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D017646:Organosilicon Compounds / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D006219:Halogens; D017646:Organosilicon Compounds