111469-89-7

Basic information

• Product Name: Tristannane, 2,2-bis(1,1-dimethylethyl)-1,1,1,3,3,3-hexaphenyl-
• CAS NO: 111469-89-7
• Molecular Formula: C44H48Sn3
• Molecular Weight: 932.995
• Mol File: 111469-89-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Tristannane, 2,2-bis(1,1-dimethylethyl)-1,1,1,3,3,3-hexaphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Tristannane, 2,2-bis(1,1-dimethylethyl)-1,1,1,3,3,3-hexaphenyl-(111469-89-7)
• EPA Substance Registry System: Tristannane, 2,2-bis(1,1-dimethylethyl)-1,1,1,3,3,3-hexaphenyl-(111469-89-7)

Safety Data

• Hazardous Substances Data: 111469-89-7(Hazardous Substances Data)

Upstream product

• 4167-90-2 lithium triphenylstannide 
• 86961-95-7 1.4-Diiod-octa-tert.-butyl-tetrazinn 
• 99893-32-0 ((((CH₃)3C)2Sn)3)I₂ 
• 19429-30-2 di-tert-butyltin dichloride 

Relevant articles and documents

Synthesis and reactivity of alkaline-earth stannanide complexes by hydride-mediated distannane metathesis and organostannane dehydrogenation

The synthesis of heteroleptic complexes with calcium- and magnesium-tin bonds is described. The dimeric β-diketiminato calcium hydride complex, [(BDI)Ca(μ-H)]2 (ICa) reacts with Ph3Sn-SnPh3 to provide the previously reported μ2-H bridged calcium stannanide dimer, [(BDI)2Ca2(SnPh3)(μ-H)] (3). Computational assessment of this reaction supports a mechanism involving a hypervalent stannate intermediate formed by nucleophilic attack of hydride on the distannane. Monomeric calcium stannanides, [(BDI)Ca(SnPh3)·OPPh3] (8·OPPh3) and [(BDI)Ca(SnPh3)·TMTHF] (8·TMTHF, TMTHF = 2,2,5,5-tetramethyltetrahydrofuran) were obtained from ICa and Ph3Sn-SnPh3, after addition OPPh3 or TMTHF. Both complexes were also synthesised by deprotonation of Ph3SnH by ICa in the presence of the Lewis base. The calcium and magnesium THF adducts, [(BDI)Ca(SnPh3)·THF2] (8·THF2) and [(BDI)Mg(SnPh3)·THF] (9·THF), were similarly prepared from [(BDI)Ca(μ-H)·(THF)]2 (ICa·THF2) or [(BDI)Mg(μ-H)]2 (IMg) and Ph3SnH. An excess of THF or TMTHF was essential in order to obtain 8·TMTHF, 8·THF2 and 9·THF in high yields whilst avoiding redistribution of the phenyl-tin ligand. The resulting Ae-Sn complexes were used as a source of [Ph3Sn]- in salt metathesis, to provide the known tristannane Ph3Sn-Sn(t-Bu)2-SnPh3 (11). Nucleophilic addition or insertion with N,N′-di-iso-propylcarbodiimide provided the stannyl-amidinate complexes, [(BDI)Mg{(iPrN)2CSnPh3}] (12) and [(BDI)Ca{(iPrN)2CSnPh3}·L] (13·TMTHF, 13·THF, L = TMTHF, THF). The reactions and products were monitored and characterised by multinuclear NMR spectroscopy, whilst for compounds 8, 9, 12, and 13·THF, the X-ray crystal structures are presented and discussed.