Mobility of spin probes having a primary, secondary, tertiary, or quaternary amino group in drawn and undrawn nylon 6 film

Hamada, Kunihiro; Iijima, T.; McGregor, R.

doi:10.1002/polb.1988.090260215

Cited by 4 publications

References 17 publications

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Reductive Aminations of Carbonyl Compounds with Borohydride and Borane Reducing Agents

2002

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Reductive amination is an important tool for synthetic organic chemists in the construction of carbon‐nitrogen bonds. This reaction, also termed reductive alkylation, involves condensation of an aldehyde or ketone with an amine in the presence of a reducing agent. A wide variety of substrates can be used including aliphatic and aromatic aldehydes and ketones, and even benzophenones. A range of amines from ammonia to aromatic amines, including those with electron‐withdrawing substituents, can be employed. For particularly sluggish reactions, such as those involving weakly electrophilic carbonyl groups, poorly nucleophilic amines, or sterically congested reactive centers, additives such as molecular sieves or Lewis acids are often useful. This chapter focuses on those conditions in which the carbonyl component, amine, and reducing reagent react in the same vessel. This review is restricted to reductive aminations using borohydride and borane reducing agents. This chapter concentrates on reductive amination chemistry mediated by borohydride and other boron‐containing reducing agents from 1971, the year when sodium cyanoborohydride was introduced, through the middle of 1999. In addition to reductive aminations of aldehyde and ketone substrates, reactions of related structures including acetals, aminals, ketals, carboxylic acids, nitriles, and dicarbonyls that form a nitrogen‐containing ring are reviewed. Intramolecular processes in which the substrate contains both the carbonyl and amine moieties are described. The intramolecular variant is a useful method for preparing cyclic amines. All of the various boron‐containing hydride sources in reductive aminations, including labeled metal hydrides, are reviewed. Instances of reductive aminations that failed are described. Applications of this method to a solid support in parallel synthesis in combinatorial chemistry as well as reductive aminations that proceed in tandem with a second reaction such as reductive lactamizations are discussed.

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Reductive Aminations of Carbonyl Compounds with Borohydride and Borane Reducing Agents

2002

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Effect of thermal treatments on the yielding of polycarbonate

Kontou¹

2005

J of Applied Polymer Sci

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Two different thermal treatments were applied to polycarbonate (PC) in terms of slow cooling (annealed samples) after a thermal treatment at a temperature above the glass-transition temperature or abrupt cooling in a liquid-nitrogen environment (quenched samples). Tensile and compression experiments were performed on the two types of samples at three different effective strain rates. A viscoplastic model based on the fundamental assumptions of the Eyring model and on a kinematic formulation, which separated the viscoelastic and plastic strain, developed in previous works, was used to describe the yield and postyield behavior of thermally treated PC. The different thermal treatments affected the parameters of the material microstructure. A satisfactory agreement between the experimental data and calculated results was found. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 98: 796 -805, 2005

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Electron spin resonance in surface science

Martini

1990

Colloids and Surfaces

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Mobility of spin probes having a primary, secondary, tertiary, or quaternary amino group in drawn and undrawn nylon 6 film

Cited by 4 publications

References 17 publications

Reductive Aminations of Carbonyl Compounds with Borohydride and Borane Reducing Agents

Reductive Aminations of Carbonyl Compounds with Borohydride and Borane Reducing Agents

Effect of thermal treatments on the yielding of polycarbonate

Electron spin resonance in surface science

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