1128-87-6

Basic information

• Product Name: N,N-HEXAMETHYLENEACETOACETAMIDE
• Synonyms: LABOTEST-BB LT00000052;N,N-HEXAMETHYLENEACETOACETAMIDE;1-ACETOACETYLPIPERIDINE
• CAS NO: 1128-87-6
• Molecular Formula: C₉H₁₅NO₂
• Molecular Weight: 183.25
• Mol File: 1128-87-6.mol
• Article Data: 22

Chemical Properties

• Boiling Point: 308.5°C at 760 mmHg
• Flash Point: 137.4°C
• Appearance: /
• Density: 1.064g/cm³
• Vapor Pressure: 0.000677mmHg at 25°C
• Refractive Index: 1.479
• PKA: 13.95±0.20(Predicted)
• CAS DataBase Reference: N,N-HEXAMETHYLENEACETOACETAMIDE(CAS DataBase Reference)
• NIST Chemistry Reference: N,N-HEXAMETHYLENEACETOACETAMIDE(1128-87-6)
• EPA Substance Registry System: N,N-HEXAMETHYLENEACETOACETAMIDE(1128-87-6)

Safety Data

• Hazardous Substances Data: 1128-87-6(Hazardous Substances Data)

Usage

Purification Methods

Dissolve it in *benzene, extract with 0.5M HCl to remove basic impurities, wash with water, dry, and distil it at 0.1mm [Wilson J Org Chem 28 314 1963]. [Beilstein 20 IV 1121.]

InChI:InChI=1/C9H15NO2/c1-8(11)7-9(12)10-5-3-2-4-6-10/h2-7H2,1H3

Upstream product

• 934370-33-9 2-Chloro-1-(piperidin-1-yl)butane-1,3-dione 
• 110-89-4 piperidine 
• 5394-63-8 2,2,6-trimethyl-4H-1,3-dioxin-4-one 
• 105-45-3 acetoacetic acid methyl ester 
• 141-97-9 ethyl acetoacetate 
• 674-82-8 4-methyleneoxetan-2-one 
• 1694-31-1 tert-butyl acetoacetate 

Downstream Products

• 126274-26-8 3-[(4-Chloro-2-nitro-phenyl)-hydrazono]-1-piperidin-1-yl-butan-1-one 
• 83305-64-0 2-Benzyl-1-piperidin-1-yl-butane-1,3-dione 
• 135878-43-2 N-(2-((p-nitrobenzenesulfonyl)oxy)-1,3-dioxo-1-butyl)piperidine 
• 126274-20-2 3-[(2-Nitro-phenyl)-hydrazono]-1-piperidin-1-yl-butan-1-one 
• 83325-68-2 2-[(E)-Phenylimino]-1-piperidin-1-yl-butane-1,3-dione 
• 126274-27-9 3-[(2-Nitro-4-trifluoromethyl-phenyl)-hydrazono]-1-piperidin-1-yl-butan-1-one 
• 126274-25-7 3-[(4-Methyl-2-nitro-phenyl)-hydrazono]-1-piperidin-1-yl-butan-1-one 

Relevant articles and documents

Tin(II) Amides: New Reagents for the Conversion of Esters to Amides

Mixed tin(II) amides are generated, in situ, via addition of aliphatic amines to Sn2.Condensation of these reagents with esters yields amides.

α-Crotyl-α-difluoroboranyloxy-amides: Structure and Reactivity of Isolable Intermediates in Stereospecific α-Ketol Rearrangements

The stereospecific BF3-mediated α-ketol rearrangement of β-hydroxy-α-ketoamides yields isolable 2-difluoroboranyloxy-3-keto-amides. X-ray and NMR analysis reveal a carbonyl coordination of the boron by the amide not the ketone. The boron complexes are air-stable solids, can be purified by silica gel chromatography, and exhibit novel reactivity in bromination and superior stereoselectivity in dipolar cycloaddition reactions.

Synthesis of α-Alkyl-β-Hydroxy Amides through Biocatalytic Dynamic Kinetic Resolution Employing Alcohol Dehydrogenases

Chiral (α-substituted) β-hydroxy amides are interesting derivatives as they are useful building blocks of many biologically active compounds. Herein, the biocatalytic stereocontrolled synthesis of various acyclic syn-α-alkyl-β-hydroxy amides through a dynamic kinetic resolution is shown. Hence, a series of overexpressed alcohol dehydrogenases (ADHs) in Escherichia coli was used to reduce the corresponding racemic β-keto amides. Among them, ADH-A from Rhodococcus ruber and commercial evo-1.1.200 afforded the best activities and selectivities, giving access to the opposite enantiomers with high diastereomeric excess and excellent enantiomeric excess. Some of these compounds were obtained at semipreparative scale. (Figure presented.).

COMPOSITIONS COMPRISING A POLYMERIC NETWORK

The present invention relates to a composition comprising a polymeric network having at least one unit of formula (I), (II), and/or (III); (I) (II) (III) wherein said composition is obtained by contacting at least one compound A comprising at least two functions selected from the group of function of formula X—C(═O)—CHR1—C(═O)—R2, —C(═O)—C—R2; or —C(═O)—CR1═CR2—NR4R5; wherein at least 25% by weight of compounds A have a functionality ≦5, with % by weight relative to the total weight of compounds A; with at least one compound B comprising at least one NH2, or NH3+ groups; wherein X, R1, R2, R3, R4, R5, L1 and L2 have the same meaning as that defined in the claims. The present invention also relates to a compound comprising at least two units and at most 5 units of formula (I), (II), and/or (III); wherein R1, R2, R3, X, L1 and L2 have the same meaning as that defined in the claims. The present invention also relates to processes for preparing said composition and said compounds, to material, articles, and polymers comprising or using said compositions and compounds, and the use thereof.