Persulfonylation of amines applied to the synthesis of higher generation dendrimers.
Systematic analysis of the persulfonylation of branched aromatic oligoamines with different arylsulfonyl chlorides allowed optimization of the repetitive steps involved in the synthesis of the sulfonimide-based dendrimers. The optimized procedures afforded the fourth generation N- and pentaphenylene-centered dendrimers with 16 and 32 peripheral groups, respectively. Analysis of products of incomplete substitution showed that the amino groups in aromatic oligoamines are persulfonylated consecutively.
Lukin
Oleg
O
Institute of Polymers, Department of Materials, ETH Zurich, HCI G 527, 8093 Zurich, Switzerland. oleg.lukin@mat.ethz.ch
Schubert
Dirk
D
Müller
Claudia
C
Corda
Mirza
M
Kandre
Ramchandra
R
D000588:Amines / Q000737:chemistry*; D050091:Dendrimers / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D013457:Sulfur Compounds / Q000138:chemical synthesis* / Q000737:chemistry
D000588:Amines; D050091:Dendrimers; D013457:Sulfur Compounds