36884-29-4

Basic information

• Product Name: 4-BROMO-PENT-4-ENAL
• Synonyms: 4-BROMO-PENT-4-ENAL
• CAS NO: 36884-29-4
• Molecular Formula: C₅H₇BrO
• Molecular Weight: 163.01248
• Mol File: 36884-29-4.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4-BROMO-PENT-4-ENAL(CAS DataBase Reference)
• NIST Chemistry Reference: 4-BROMO-PENT-4-ENAL(36884-29-4)
• EPA Substance Registry System: 4-BROMO-PENT-4-ENAL(36884-29-4)

Safety Data

• Hazardous Substances Data: 36884-29-4(Hazardous Substances Data)

Upstream product

• 113832-57-8 N-ethylidenecyclohexylamine 
• 513-31-5 2-bromoallyl bromide 
• 36884-27-2 2,3,4,4,6-pentamethyl-5,6-dihydro-4H-[1,3]oxazinium; iodide 
• 64180-78-5 4-bromopent-4-en-1-ol 
• 92975-38-7 4-bromo-4-pentenoic acid tert-butyl ester 
• 108-91-8 cyclohexylamine 
• 55089-12-8 2-(3-bromo-but-3-enyl)-4,5-dihydro-thiazole 

Downstream Products

• 333961-98-1 2-(3-bromobut-3-en-1-yl)-1,3-dioxolane 
• 1187677-91-3 6-bromo-1-phenylhept-6-en-3-ol 
• 1319647-82-9 C₁₈H₂₅BrO₃ 
• 1319647-61-4 C₂₀H₂₈O₄ 
• 1319647-59-0 C₂₀H₂₈O₃ 
• 1319647-58-9 C₂₁H₃₁BrO₃ 
• 1319647-85-2 C₁₈H₂₇BrO₃ 
• 139705-40-1 N-(6-Bromo-3-vinyl-hept-6-enyl)-4-methyl-benzenesulfonamide 
• 139705-42-3 (3aR,6aS)-6a-Methyl-6-methylene-1-(toluene-4-sulfonyl)-octahydro-cyclopenta[b]pyrrole 
• 139705-39-8 Benzyl-(6-bromo-3-vinyl-hept-6-enyl)-amine 
• 139705-41-2 (3aR,6aS)-1-Benzyl-6a-methyl-6-methylene-octahydro-cyclopenta[b]pyrrole 
• 155254-41-4 4-(methyldiphenylsilyl)-4-pentenal 
• 155254-42-5 4-(dimethylphenylsilyl)-4-pentenal 
• 155325-51-2 (R)-3-(4-methoxyphenyl)cyclopentan-1-one 

Relevant articles and documents

Synthesis and olfactory characterization of silicon-containing derivatives of the acyclic lily-of-the-valley odorant 5,7,7-trimethyl-4-methylideneoctanal

5-Methyl-4-methylidene-6-(trimethylsilyl)hexanal (1b), a sila analog of the acyclic lily-of-the-valley odorant 5,7,7-trimethyl-4-methylideneoctanal (1a), and the Si-containing derivatives 2-6 were prepared in multistep syntheses, starting from Cl3SiH and Cl2SiMe2 , respectively. Compounds 1b, 2-6, and their new precursors were characterized by elemental analyses (C, H, N) and NMR spectroscopic studies (1H, 13C, 15N, and 29Si). To gain more information about the structure-odor correlation in the family of lily-of-the-valley or muguet odorants, C/Si analogs 1a/1b and derivatives 2-6 were evaluated for their olfactory properties.

Synthesis of the 3-methylene-2-vinyltetrahydropyran unit; the hallmark of the sesquiterpene, hodgsonox

(Chemical Equation Presented) The synthesis of some simple compounds containing the previously unreported 3-methylene-2-vinyltetrahydropyran system, a unique feature of the liverwort metabolite, hodgsonoxis reported. Key features are the creation of an ac

Asymmetric catalysis. Asymmetric catalytic intramolecular hydroacylation of 4-pentenals using chiral rhodium diphosphine catalysts

Catalysts of the type [Rh(chiral diphosphine)]+ convert 4-substituted 4-pentenals into the corresponding 3-substituted cyclopentanones with generally high turnover numbers and frequencies at 25 °C. The enantioselectivities of various substituted 4-pentenals with two chiral diphosphines have been explored. It was found that with the binap catalyst, almost complete enantioselectivity is observed for 4-pentenal substrates bearing 4-substituted tertiary substituents and for ester groups. Ketonic substituents give very high enantioselectivities. The mechanism of intramolecular hydroacylation has been explored, and it is suggested that an important consideration for obtaining high turnover frequencies is related to the acyl-alkyl reductive elimination mechanism which is inferred to occur by a process similar to ester hydrolysis. The origin of the enantioselection is discussed in terms of the interactions between the phenyl groups of the phosphine and the substituent of the pentenal.