Understanding the microscopic details of shock-wave initiation of energetic materials requires a realistic picture of picosecond time scale processes occurring in large molecules located in an -100 nanometer thin layer just behind the front. In this paper, I discuss a theoretical model for shock wave induced chemistry which highlights the role of molecular mechanical energy transfer processes, ...

To increase selectivity and sensitivity of determination of nitromethane in the air a set of piezoelectric gas sensors is proposed. In order to increase the differences between the signals sensor responses have been preliminary processed in accordance with the known algorithms. To determine nitrometane in the air an artificial neural network is applied and its parameters have been investigated.

The aza-Henry reaction of chiral fluoroalkyl α,β-unsaturated N-tert-butanesulfinyl ketoimines and nitromethane was achieved in the presence of 0.2 equivalent of anhydrous potassium carbonate to give the corresponding adducts diastereoselectively in high yields. Transformations which highlighted the synthetic potential of these aza-Henry adducts were also performed.

An efficient synthesis of enantiomerically-pure β-aryl-γ-lactams is described. The principal feature of this synthesis is the practical resolution of β-aryl-γ-lactams with (S)-Naproxen. The procedure is based on the Michael addition of nitromethane to benzylidenemalonates, which was easily obtained, followed by the reduction of the γ-nitroester in the presence of Raney nickel and the subsequent...

Herein, we describe a short synthesis of 3-methyl-4-nitro-5-alkylethenyl isoxazoles and their reactivity as Michael acceptors. The title compounds reacted with nitromethane under phase-transfer catalysis to provide highly enantioenriched adducts (up to 93% ee) which were then converted to the corresponding γ-nitroacids.

An environmentally-friendly, enzyme-promoted procedure for the Henry reaction was first studied using water-in-[Bmim][PF6] microemulsions as reaction medium. The Amano acylase from Aspergillus oryzae showed better catalytic activity for the addition reactions of nitromethane with a series of aromatic aldehydes, and a highest yield of 90% was obtained.

The combination of a catalytic amount of Cu(OTf)2 and less than a stoichiometric amount of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) under an O2 atmosphere effectively promoted the N-nitrosation of both secondary aromatic/aliphatic amines and tertiary aromatic amines with nitromethane (CH3NO2) leading to the preparation of N-nitrosamine derivatives.

A three-component reaction of beta-nitrostyrene, arylmethylidenemalononitrile and malononitrile catalyzed by imidazole produced the corresponding polysubstituted cyclohexene derivatives in moderate to good yields under mild conditions. A further improvement of this three-component reaction has also been achieved by starting from a commercially available aromatic aldehyde, nitromethane and malon...

A C(2)-symmetric diethyl (i)Pr-bis(oxazoline)-Cu(OAc)(2).H(2)O was found to be an efficient catalyst for catalyzing an enantioselective Henry reaction between nitromethane and various aldehydes to provide beta-hydroxy nitroalkanes with high chemical yields (up to 95%) and enantiomeric excesses (up to 97%).