1307262-99-2

Basic information

• Product Name: cis-1,4-diphenyl-1,4-bis(triisopropylsilylethynyl)butatriene
• CAS NO: 1307262-99-2
• Molecular Weight: 565.002
• Mol File: 1307262-99-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: cis-1,4-diphenyl-1,4-bis(triisopropylsilylethynyl)butatriene(CAS DataBase Reference)
• NIST Chemistry Reference: cis-1,4-diphenyl-1,4-bis(triisopropylsilylethynyl)butatriene(1307262-99-2)
• EPA Substance Registry System: cis-1,4-diphenyl-1,4-bis(triisopropylsilylethynyl)butatriene(1307262-99-2)

Safety Data

• Hazardous Substances Data: 1307262-99-2(Hazardous Substances Data)

Upstream product

• 503595-76-4 3-(tri(isopropyl)silyl)-1-phenylprop-2-yn-1-one 
• 263720-76-9 1-phenyl-3-(triisopropylsilyl)prop-2-yn-1-ol 
• 100-52-7 benzaldehyde 
• 89343-06-6 tris-iso-propylsilyl acetylene 
• 1307263-17-7 C₁₉H₂₆Cl₂Si 
• 1307263-00-8 C₁₉H₂₆Br₂Si 

Downstream Products

• 1307262-98-1 cis-1,4-diethynyl-1,4-diphenylbutatriene 
• 1307262-98-1 trans-1,4-diethynyl-1,4-diphenylbutatriene 

Relevant articles and documents

1,4-Dialkynylbutatrienes: Synthesis, stability, and perspectives in the chemistry of carbo-benzenes

The π-electron-rich C8-conjugated sequence of 1,4-dialkynylbutatrienes is identified as a fragile and fascinating motif occurring in carbo-benzene derivatives, and in Diederich's 1,4-bis(arylethynyl)- or 1,4-bis(triisopropylsilylethynyl)butatriene "capped" representatives, in particular, in tetraalkynylbutatriene. The family of symmetrical 1,4-dialkynylbutatrienes (E-C≡C)RC=C=C=CR(C≡C-E) is extended to functional caps (E=H, CH3, C≡CPh, CPh=CHBr, or CPh=CBr2) with non-alkynyl substituents at the sp2 vertices (R=Ph or CF3). The targets were selected for their potential in appealing retrosynthetic routes to carbo-benzenes, in which the aromatic C18 macrocycle would be directly generated by sequential metathesis or reductive coupling processes. The functional 1,4-dialkynylbutrienes were synthesized by either classical methods used for the preparation of generic butatrienes (R′Li/CuX-mediated reductive coupling of gem-dihaloenynes or SnCl2/HCl-mediated reduction of 3,6-dioxy-octa-1,4,7-triyne precursors). Their spectroscopic and electrochemical properties are compared and analyzed on the basis of the relative extent of total conjugation.