4843-72-5

Basic information

• Product Name: Lithium, (2-phenylethenyl)-
• CAS NO: 4843-72-5
• Molecular Formula: C8H7Li
• Molecular Weight: 110.085
• Mol File: 4843-72-5.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Lithium, (2-phenylethenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Lithium, (2-phenylethenyl)-(4843-72-5)
• EPA Substance Registry System: Lithium, (2-phenylethenyl)-(4843-72-5)

Safety Data

• Hazardous Substances Data: 4843-72-5(Hazardous Substances Data)

Upstream product

• 100-42-5 styrene 
• 109-72-8 n-butyllithium 
• 42599-24-6 E-styryl iodide 

Downstream Products

• 107673-69-8 (S)-N-(1-Methyl-2-oxo-4-phenyl-3-butenyl)carbamidsaeure-ethylester 
• 40595-34-4 (E)-trimethyl(3-phenylallyl)silane 
• 57044-58-3 (E)/(Z)-β-Trimethylsiloxystyrene 
• 18001-47-3 styryltrimethylsilane 
• 109900-81-4 [3,3-Dimethyl-2-((E)-styryl)-cycloprop-1-enyl]-trimethyl-silane 
• 119873-75-5 (E)-dimethyl(2-phenylethenyl)silane 
• 104891-66-9 β-styrylchloromethyldimethylsilane 
• 119873-71-1 β-styryldiphenylsilanol 
• 84395-76-6 (E)-N-benzyl-N-methyl-2-phenylethen-1-amine 
• 242808-86-2 methyl(E)-2-phenylethenyl(3,3,3-trifluoropropyl)silanol 
• 120760-00-1 (1E)-1-Phenyl-1-heptene-3,6-dione 
• 84028-79-5 (E)-methyl 4-oxo-6-phenylhex-5-enoate 
• 18766-06-8 triphenyl(styryl)silane 
• 1047682-70-1 Ir(Ph)(κ3-C6H3-2,6-(CH2P(tert-butyl)2)2)(trans-CHCHPh) 

Relevant articles and documents

Reactions of phenylacetylene with nickel POCOP-pincer hydride complexes resulting in different outcomes from their palladium analogues

Nickel POCOP-pincer hydride complexes [2,6-(R2PO)2C6H3]NiH (R = iPr, 4a; R = cPe = cyclopentyl, 4b) react with phenylacetylene to generate [2,6-(R2PO)2C6H3]NiC(Ph)=CH2 (5a-b) as the major product and (E)-[2,6-(R2PO)2C6H3]NiCH=CHPh (6a-b) as the minor product. The 2,1-insertion is more favorable than the 1,2-insertion and both pathways involve cis addition of Ni-H across the C≡C bond. Unlike the palladium case, alkynyl complexes [2,6-(R2PO)2C6H3]NiC≡CPh (7a-b) and H2 are not produced in the nickel system. The more bulky hydride complex [2,6-(tBu2PO)2C6H3]NiH (4c) shows no reactivity towards phenylacetylene. Catalytic hydrogenation of phenylacetylene with 4a-b takes place at an elevated temperature (70-100 °C) and proves to be heterogeneous. The structures of 5b, 6a, 7a and 7b have been studied by X-ray crystallography.