5789-33-3

Basic information

• Product Name: 4-methyl-N-[(1E)-thiophen-2-ylmethylidene]piperazin-1-amine
• Synonyms: 1-piperazinamine, 4-methyl-N-[(1E)-2-thienylmethylene]-; 4-Methyl-N-[(E)-2-thienylmethylene]piperazin-1-amine
• CAS NO: 5789-33-3
• Molecular Formula: C₂₀H₂₆
• Molecular Weight: 209.3112
• Mol File: 5789-33-3.mol
• Article Data: 12

Chemical Properties

• Boiling Point: 344.7°C at 760 mmHg
• Flash Point: 162.3°C
• Density: 1.18g/cm³
• Vapor Pressure: 6.47E-05mmHg at 25°C
• Refractive Index: 1.621
• CAS DataBase Reference: 4-methyl-N-[(1E)-thiophen-2-ylmethylidene]piperazin-1-amine(CAS DataBase Reference)
• NIST Chemistry Reference: 4-methyl-N-[(1E)-thiophen-2-ylmethylidene]piperazin-1-amine(5789-33-3)
• EPA Substance Registry System: 4-methyl-N-[(1E)-thiophen-2-ylmethylidene]piperazin-1-amine(5789-33-3)

Safety Data

• Hazardous Substances Data: 5789-33-3(Hazardous Substances Data)

Upstream product

• 99-87-6 4-methylisopropylbenzene 
• 107-13-1 acrylonitrile 
• 202277-65-4 1,2-bis[(2,4,6-trimethylphenyl)imino]-1,2-dimethylethane 
• 73789-86-3 4-i-propylbenzyl bromide 
• 1337556-97-4 C₁₈H₂₀O 
• 4395-87-3 (4-isopropylphenyl)acetonitrile 
• 101-97-3 Ethyl 2-phenylethanoate 
• 79152-62-8 C₂₀H₂₆N₄ 
• 79135-55-0 1,2-Dichloro-1,2-bis(p-isopropylphenyl)ethane 
• 82234-68-2 p-dichloromethylcumene 
• 64-19-7 acetic acid 
• 79135-52-7 1,2-bis(4-isopropylphenyl)acetylene 
• 5623-24-5 4,4'-diisopropylbenzoin 
• 434-45-7 2,2,2-Trifluoroacetophenone 

Relevant articles and documents

Varying Selectivities of Triplet Ketones toward p-Cymene: A Measure of the Extent of Charge Transfer in Triplet Exciplexes

-

A well-defined low-valent cobalt catalyst Co(PMe3)4 with dimethylzinc: a simple catalytic approach for the reductive dimerization of benzyl halides

Herein, we report the first catalytic version of a cobalt-catalysed reductive homocoupling of benzyl halides which proceeds with low catalyst loadings (0.5 to 5 mol%). By synthetizing each cobalt intermediate we demonstrate that reaction proceeds through two single electron transfers (SET) and that dimethylzinc is only involved in the regeneration of the catalytic species.

Unsurpassed cage effect for the photolysis of dibenzyl ketones in water-soluble dendrimers

Amphiphilic water-soluble poly(alkyl aryl ether) dendrimers Gn (n = 1-3) with charge-neutral tetraethylene glycol monomethyl ethers at their periphery were synthesized as microreactors to control the photochemical reactions of dibenzyl ketone derivatives in aqueous solutions. Photophysical studies demonstrated that Gn can encapsulate organic molecules and provide a hydrophobic microenvironment. The product distribution of photolysis of dibenzyl ketone derivatives can be successfully controlled by encapsulating the substrates within dendrimers, and an unsurpassed cage effect of 1.00 is reached in high generation dendrimers, revealing that a thick and compact "shell" was formed at the periphery of the dendrimers. The cage effect is also significantly influenced by the substituent at the para-position of the guest molecules. The higher generation dendrimers exhibit a better confined microenvironment and the aggregates possess more compact cavities to "lock" the guests than the corresponding unimolecular dendrimers. After photolysis, the separation of products can be easily achieved by extracting from the dendrimer solutions and the dendrimers are simply recovered and reused.