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Trimethylene‐Bridged Tri‐ and Tetratin Compounds as Building Blocks for Unusual Double and Triple Ladders
Author(s) -
Mehring Michael,
Schürmann Markus,
Reuter Hans,
Dakternieks Dainis,
Jurkschat Klaus
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199711121
Subject(s) - pillar , yield (engineering) , crystallography , stereochemistry , contrast (vision) , triple bond , chemistry , materials science , double bond , structural engineering , physics , engineering , polymer chemistry , composite material , optics
Pillar‐shaped organostannoxanes with the first triple‐ladder structure of type A are obtained in almost quantitative yield by reaction of the tritin compound [RCl 2 Sn(CH 2 ) 3 ] 2 SnCl 2 with ( t Bu 2 SnO) 3 . In contrast, treating [RCl 2 Sn(CH 2 ) 3 ] 2 SnCl 2 SiMe with ( t Bu 2 SnO) 3 affords an organostannoxane with a folded double‐ladder structure. R CH 2 SiMe 3 .