765-30-0Relevant articles and documents
The Insertion Reaction of NH Singlet Radicals into the C-H Bonds of Cyclopropane and Isobutane in the Liquid Phase
Hamada, Jun-ich,Tsunashima, Shigeru,Sato, Shin
, p. 1739 - 1742 (1982)
Hydrogen azide was photolyzed in liquid cyclopropane at the temperature of Dry Ice-methanol.The main products observed were nitrogen, cyclopropylamine, and ammonia.The relative yields of the products depended slightly on the concentration of hydrogen azide.The results were then compared with those obtained with paraffin and olefin.The isobutane solution of hydrogen azide was photolyzed at 0 deg C.The products observed were the same as those obtained at the temperature of Dry-Ice-methanol.The relative yields of the products and the concentration dependence, however, were different.
Novel method and technology for synthesizing cyclopropyl ammonia
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Paragraph 0019, (2021/09/21)
The invention discloses a synthesis process route of a cyclopropane synthetic route. In the process route, cyanocyclopropane 1 - formic acid (-1 -) and (1) are subjected to hydrolysis under the action of a strong base to generate 1-cyanocyclopropane 1 - formic acid (-1 -), (2) decarboxylation to generate cyclopropanecarboxamide (2 3), and (4 4 3) subjected to Hoffman rearrangement to obtain the target product cyclopropysite. The process route is longer than the production process in the present stage, the reaction route is long, the use of high-temperature and high-pressure is avoided, the danger is reduced, and the safety is improved. The requirement of the reaction equipment is reduced, the used raw materials are easy to obtain, operation is easy, safety and environmental protection are achieved, and industrial production can be realized.
NHC-based coordination polymers as solid molecular catalysts for reductive amination of biomass levulinic acid
Sun, Zheming,Chen, Jiangbo,Tu, Tao
, p. 789 - 794 (2017/08/18)
A class of robust solid molecular NHC-based catalysts were readily fabricated via self-assembly from a p-phenylene-bridged bis-benzimidazolium salt with selected metal precursors. Among them, the NHC-Ru polymer demonstrated high catalytic activity and excellent stability as a solid molecular catalyst for the solvent-free reductive amination of biomass levulinic acid with inexpensive ammonium formate, furnishing a challenging unprotected 5-methyl-2-pyrrolidone quantitatively at a 0.15 mol% catalyst loading. The solid catalyst was readily recovered and reused for 37 runs without obvious loss of activity. Remarkably, a TON value up to 6.7 × 104 was achieved in a molar-scale reaction with a catalyst loading at 0.001 mol%. Inspired by the results of a preliminary mechanistic study, notably, one-pot tandem reductive reactions of LA with aldehydes or ketones were successfully developed, affording a variety of structurally intriguing and functional N-substituted 5-methyl-2-pyrrolidones in high chemo-selectivity with good to excellent yields.
