From poly(dialkylstannane)s to poly(diarylstannane)s: comparison of synthesis methods and resulting polymers | Zendy

Lechner MarieLuise | Zendy; Trummer Markus | Zendy; Bräunlich Irene | Zendy; Smith Paul | Zendy; Caseri Walter | Zendy; Uhlig Frank | Zendy

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From poly(dialkylstannane)s to poly(diarylstannane)s: comparison of synthesis methods and resulting polymers

Author(s) -

Lechner MarieLuise,

Trummer Markus,

Bräunlich Irene,

Smith Paul,

Caseri Walter,

Uhlig Frank

Publication year - 2011

Publication title -

applied organometallic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.53

H-Index - 71

eISSN - 1099-0739

pISSN - 0268-2605

DOI - 10.1002/aoc.1836

Subject(s) - chemistry , tetramethylethylenediamine , catalysis , polymer , molar mass , polymerization , polymer chemistry , molar ratio , coupling (piping) , transition metal , organic chemistry , mechanical engineering , engineering

The efficiency and applicability of three different methods to synthesize polystannanes with different side chains are described. By means of dehydrogenative coupling utilizing the transition metal catalyst RhCl(PPh 3 ) 3 (Wilkinson's catalyst), n ‐Bu 2 SnH 2 reached the highest molar masses. Dehydrogenetive coupling in the presence of tetramethylethylenediamine could be best employed for (4‐ n ‐BuPh) 2 SnH 2 . Wurtz coupling using sodium in liquid ammonia was best suited for Ph 2 SnCl 2 . Next to the above‐mentioned educts, n ‐Bu(Ph)SnX 2 (X = H or Cl (as appropriate for the particular route) was used for polymerization resulting in one of so far rare example of asymmetric polystannanes with high molecular masses. Copyright © 2011 John Wiley & Sons, Ltd.

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