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Addition von Stannylenen an Iminoborane
Author(s) -
Paetzold Peter,
Hahnfeld Detlef,
Englert Ulli
Publication year - 1992
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19921250515
Subject(s) - chemistry , stereochemistry , boranes , monomer , bicyclic molecule , medicinal chemistry , boron , organic chemistry , polymer
Addition of Stannylenes to Iminoboranes Iminoboranes t BuB NR (R = t Bu, Mes: 1 a, b ) undergo aminostannation by the diaminostannylene Sn[N(SiMe 3 ) 2 ] 2 ( 2b ) to give (Me 3 Si) 2 N‐B( t Bu) = NR–Sn–N(SiMe 3 ) 2 ( 4a, b ). The stannylene 4 b remains monomeric in the crystal (space group P 2 1 / n ). The cyclic diaminostannylene [–Sn–N( t Bu)–SiMe 2 ‐N( t Bu)–] ( 3 b ), instead, simply adds the boranes 1 a, b across one of its Sn–N bonds to form the bicyclo[2.2.0]hexene‐type products 5a, b .