Syntheses and characterizations of cyclotriphosphazenes containing a 4-oxy-1-naphthaldehyde group

Authors : Hanife İBİŞOĞLU, Esra TANRIVERDİ EÇİK, Gönül YENİLMEZ ÇİFTÇİ

Pages : 1174-1183

View : 14 | Download : 10

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :  The nucleophilic substitution reaction of hexachlorocyclotriphosphazene insert ignore into journalissuearticles values(N 3 ` role=`presentation`> 3 3 _{3} P 3 ` role=`presentation`> 3 3 _{3} Cl 6 ` role=`presentation`> 6 6 _{6} , trimer); insert ignore into journalissuearticles values( 1 ); with 4-hydroxy-1-naphthaldehyde insert ignore into journalissuearticles values( 2 ); has been investigated for the first time. 4 ′ ` role=`presentation`> ′ ′ ^{{\prime}} -Oxy-1 ′ ` role=`presentation`> ′ ′ ^{{\prime}} -naphthaldehyde substituted mono- insert ignore into journalissuearticles values( 3 );, bis- insert ignore into journalissuearticles values( 4 );, and tris- insert ignore into journalissuearticles values( 5 ); cyclotriphosphazenes were obtained from the nucleophilic substitution of compound 1 with 2 in a 1:2 molar ratio in the presence of Cs 2 ` role=`presentation`> 2 2 _{2} CO 3 ` role=`presentation`> 3 3 _{3} in acetone at reflux. The pentakis-insert ignore into journalissuearticles values( 6 ); and hexakis-substituted insert ignore into journalissuearticles values( 7 ); cyclotriphosphazenes were prepared from the reaction of 1 with 2 in a 1:7 molar ratio using K 2 ` role=`presentation`> 2 2 _{2} CO 3 ` role=`presentation`> 3 3 _{3} as a proton abstractor in tetrahydrofuran at room temperature. The structures of the new compounds insert ignore into journalissuearticles values( 3-7 ); were determined by elemental analysis, FT-IR, and mass and nuclear magnetic resonance insert ignore into journalissuearticles values( 1 ` role=`presentation`> 1 1 ^{1} H and 31 ` role=`presentation`> 31 31 ^{31} P); spectroscopies.
Keywords : Cyclotriphosphazene, 4 hydroxy 1 naphthaldehyde, nuclear magnetic resonance