125212-51-3

Basic information

• Product Name: (E)-2-diethylboryl-1-phenyl-1-trimethylsilyl-1-butene
• Synonyms: (E)-2-diethylboryl-1-phenyl-1-trimethylsilyl-1-butene
• CAS NO: 125212-51-3
• Molecular Weight: 272.314
• Mol File: 125212-51-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (E)-2-diethylboryl-1-phenyl-1-trimethylsilyl-1-butene(CAS DataBase Reference)
• NIST Chemistry Reference: (E)-2-diethylboryl-1-phenyl-1-trimethylsilyl-1-butene(125212-51-3)
• EPA Substance Registry System: (E)-2-diethylboryl-1-phenyl-1-trimethylsilyl-1-butene(125212-51-3)

Safety Data

• Hazardous Substances Data: 125212-51-3(Hazardous Substances Data)

Upstream product

• 97-94-9 triethyl borane 
• 2170-06-1 1-Phenyl-2-(trimethylsilyl)acetylene 
• 75-77-4 chloro-trimethyl-silane 
• 14515-93-6 sodium triethyl(phenylethinyl)borate 

Downstream Products

• 125878-65-1 potassium (diethyl{1-ethyl-2-phenyl-2-(trimethylsilyl)ethenyl}hydroxyborate) 
• 125878-73-1 potassium (4,5,5-triethyl-2,5-dihydro-2,2-dimethyl-3-phenyl-1,2,5-oxasilaboratolate) 

Relevant articles and documents

Organosubstituted 2,5-Dihydro-1,2,5-azasilaboroles - Methods of Preparation and Spectroscopic Characterisation

The compounds (E)-R22R2'ElIVC(R3)=C(R4)BR25 are prepared from Na34,5BCCR3> with ClElIVR22R2' IV = Si, Ge, Sn> or from R22R2'SiCCR3 with BR34,5 (R4,5 = CH3, C6H5).The substituted silol 1z is obtained from (CH3)2Si(CCCH3)2 and B(C2H5)3, the mixture of (Z/E)-1t from (CH3)3SiCCH and B(C2H5)3. - ClSi(CH3)2C(CH3)=C(C2H5)B(C2H5)Cl (C) reacts with LiN(CH3)2 to form (CH3)2NSi(CH3)2C(CH3)=C(C2H5)B(C2H5)N(CH3)2 (E)-1n. - (E)-1a to (E)-1g or (E)-1aGe and (E)-1aSn add MNH2 (M = Na, K) to yield the compounds MNH2-1, which react to the solid alkaline metal heterocycles M-2 after liberating R2H.From (E)-1a or (E)-1b with LiNH2 the compounds (E)-C2H5CH=CR4Si(CH3)3 (A, B) are obtained. - On heating M-2a to M-2g eliminate R5H (C2H6) and smoothly from the solid compounds M-3, from which the heterocycles (4a-f) are prepared with CH3I.The 1-phenyl derivatives 5a,b are obtained from 4a,b with aniline.M-2c,d react with HCl to give the compounds 6c,d from which 7c,d are formed after C2H6 elimination.The 5-chloro compound 4i is used for the preparation of the heterocycles 4 with R5 = H, C(CH3)3, and N(CH3)2. - All compounds 1-7 are characterized by multinuclear NMR spectroscopy, the volatile compounds 1 and 4-7 also by their mass spectra. - Key Words: Organoboranes, unsaturated / Organosilanes, unsaturated / Aminotriorganoborates / Cyclization / 2,5-Dihydro-organo-1,2,5-azasilaboroles