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Reactions of Stable Amidinate Chlorosilylene and [1+4]‐Oxidative Addition of N‐Heterocyclic Silylene with N ‐Benzylideneaniline
Author(s) -
Jana Anukul,
Azhakar Ramachandran,
Sarish Sankaranarayana Pillai,
Samuel Prinson P.,
Roesky Herbert W.,
Schulzke Carola,
Koley Debasis
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100661
Subject(s) - chemistry , silylene , cycloaddition , trimer , ring (chemistry) , adduct , nonane , crystal structure , oxidative addition , stereochemistry , crystallography , medicinal chemistry , silicon , dimer , organic chemistry , catalysis
The reaction of PhC(N t Bu) 2 SiCl ( L ) with N 2 O afforded the trimer {PhC(N t Bu) 2 Si(O)Cl} 3 ( 1 ), which contains a Si 3 O 3 six‐membered ring. In the molecular structure of 1 , the PhC(N t Bu) 2 moieties are arranged around the Si 3 O 3 six‐membered ring in a paddle‐wheel fashion. Further the reaction of L with B(C 6 F 5 ) 3 and 9‐BBN (9‐borobicyclo[3.3.1]nonane) yielded the chlorosilylene–boron adducts L· B(C 6 F 5 ) 3 ( 2 ) and L· 9‐BBN ( 3 ). The reaction of CH{(C=CH 2 )(CMe)(2,6‐ i Pr 2 C 6 H 3 N) 2 }Si ( L′ ) with N ‐benzylideneaniline resulted in 4 , a [1+4]‐ rather than a [1+2]‐cycloaddition product. Compounds 1 – 4 were characterized by elemental analyses and spectroscopic methods. The molecular structures of 1 , 2 , and 4 were established unequivocally by single‐crystal X‐ray structural analysis. The formation of products 1 and 4 was supported by DFT calculations.