119906-95-5

Basic information

• Product Name: 4,5-dihydro-4,4-dimethyl-3H-dinaphtho<2,1-a:1',2'-e>stannepin
• CAS NO: 119906-95-5
• Molecular Weight: 429.149
• Mol File: 119906-95-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4,5-dihydro-4,4-dimethyl-3H-dinaphtho<2,1-a:1',2'-e>stannepin(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-dihydro-4,4-dimethyl-3H-dinaphtho<2,1-a:1',2'-e>stannepin(119906-95-5)
• EPA Substance Registry System: 4,5-dihydro-4,4-dimethyl-3H-dinaphtho<2,1-a:1',2'-e>stannepin(119906-95-5)

Safety Data

• Hazardous Substances Data: 119906-95-5(Hazardous Substances Data)

Upstream product

• 54130-90-4 2,2'-di(bromomethyl)-1,1'-binaphthalene 
• 753-73-1 dimethyltin dichloride 
• 7439-95-4 magnesium 

Downstream Products

• 60536-98-3 2,2'-dimethyl-1,1'-binaphthyl 

Relevant articles and documents

Erste asymmetrische Synthese β-binaphthylgestuetzter Silane, Stannane und Borane

Starting with differently metallated 2,2'-dimethyl-1,1'-binaphthyls, various synthetic approaches to dihydrodinaphthoborepines (2) were attempted.As the borylation of the open chain derivetives (4a, b) did not succeed under cyclization, the (R)-dihydronaphthosilepine (5a) and the (R)- and (s)-dihydrodinaphthostannepines (7a) were prepared first, by starting from the enantiomerically pure bisbenzyllithium compounds (4a).The reaction of 5a with boron tribromide and of 7a with dichloroethylborane led exclusively to a halogen-methyl exchange reaction, to give the bromodihydrosilepine (5b) and the chlorodihydrostannepine (7b), while reaction of 7a with trichloroborane predominantly led to the formation of chlorodihydroborepine (2a).