445398-84-5

Basic information

• Product Name: Silane, (1,1-dimethylethyl)dimethyl[[(4E,6E)-7-phenyl-4,6-heptadienyl]oxy]-
• CAS NO: 445398-84-5
• Molecular Formula: C19H30OSi
• Molecular Weight: 302.532
• Mol File: 445398-84-5.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Silane, (1,1-dimethylethyl)dimethyl[[(4E,6E)-7-phenyl-4,6-heptadienyl]oxy]-(CAS DataBase Reference)
• NIST Chemistry Reference: Silane, (1,1-dimethylethyl)dimethyl[[(4E,6E)-7-phenyl-4,6-heptadienyl]oxy]-(445398-84-5)
• EPA Substance Registry System: Silane, (1,1-dimethylethyl)dimethyl[[(4E,6E)-7-phenyl-4,6-heptadienyl]oxy]-(445398-84-5)

Safety Data

• Hazardous Substances Data: 445398-84-5(Hazardous Substances Data)

Upstream product

• 588-72-7 [(E)-2-bromoethenyl]benzene 
• 112505-94-9 (E)-2-(5-tert-butyldimethylsilyl-oxypent-1-enyl)-1,3,2-benzodioxaborole 
• 18162-48-6 tert-butyldimethylsilyl chloride 
• 61362-77-4 5-[tert-butyldimethylsilyloxy]pent-1-yne 

Downstream Products

• 445398-87-8 7-phenyl-hepta-4(E),6(E)-dien-1-azide 
• 445398-89-0 7-phenyl-hepta-4(E),6(E)-dien-1-amine 
• 445398-86-7 (4E,6E)-7-phenyl-4,6-heptadien-1-ol 

Relevant articles and documents

N -heteropolycyclic compounds from the formal intramolecular (4 + 1)-cycloaddition of chromium aminocarbenes

Chromium aminocarbenes tethered to dienes of all three electronic natures undergo an efficient intramolecular (4 + 1)-cycloaddition to give N-heteropolycyclic compounds. Ligands on chromium had a profound effect on the course of the reaction.

Highly stereoselective intramolecular hydroamination/cyclization of conjugated aminodienes catalyzed by organolanthanides

Efficient intramolecular hydroamination/cyclization of primary and secondary conjugated aminodienes can be effected by using organolanthanide precatalysts of the type Cp-2LnCH(TMS)2 (Cp- = η5-Me5C5; Ln = La, Sm, Y; TMS = SiMe3) and CGCSmN(TMS)2 (CGC = Me2Si(η5-Me4C5)(tBuN)). The transformation proceeds cleanly (≥ 90% conversion) at 25-60 °C with good rates and high regioselectivities, and with electronic effects leading to significant rate enhancements. Some features of the reaction parallel monosubstituted aminoalkene hydroamination/cyclization, including rate law (zero order in [aminodiene]), and rate enhancements observed with larger lanthanide ionic radii and/or more open catalyst ligation structures. Good to excellent diastereoselectivity is obtained in the synthesis of 2,5-trans-disubstituted pyrrolidines (80% de) and 2,6-cis-disubstituted piperidines (99% de) with using the corresponding α-methyl aminodiene precursors. Formation of 2-(prop-1-enyl)piperidine with the chiral C1-symmetric precatalyst (S)-Me2Si(OHF)(CpR*)SmN(TMS)2 (OHF = η5-octahydrofluorenyl; Cp = η5-C5H3; R* = (-)-menthyl) proceeds with up to 69% ee. Copyright