Practical catalytic nitration directly with commercial nitric acid for the preparation of aliphatic nitroesters

2020 ◽  
Vol 18 (34) ◽  
pp. 6612-6616
Author(s):  
Jichao An ◽  
Peipei Liu ◽  
Mengyuan Si ◽  
Wenhao Li ◽  
Pan He ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Efficient Approach ◽  
Catalytic Nitration ◽  
Direct Use

To pursue a sustainable and efficient approach for aliphatic nitroester preparation from alcohol, europium-triflate-catalyzed nitration, which involves the direct use of commercial nitric acid, has been successfully developed.

H3PW12O40 synergized with MCM-41 for the catalytic nitration of benzene with NO2 to nitrobenzene

RSC Advances ◽  
2015 ◽  
Vol 5 (89) ◽  
pp. 73083-73090 ◽  
Author(s):  
Kuiyi You ◽  
Renjie Deng ◽  
Jian Jian ◽  
Pingle Liu ◽  
Qiuhong Ai ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Catalytic Nitration ◽  
Mcm 41

In this work, NO2 as a nitration agent and the supported HPW/MCM-41 as a synergistic catalyst to replace traditional nitric acid and sulfuric acids were employed to catalyze benzene nitration to nitrobenzene.

Ectodesmata as Revealed By Freeze-Etch Preparations of Plant Epidermal Cell Walls

1973 ◽  
Vol 31 ◽  
pp. 468-469
Author(s):  
N.C. Lyon ◽  
W. C. Mueller
Keyword(s):  
Electron Microscopy ◽  
Acetic Acid ◽  
Nitric Acid ◽  
Oxalic Acid ◽  
Light Microscopy ◽  
Epidermal Cell ◽  
Cell Walls ◽  
Plant Viruses ◽  
Plant Leaves ◽  
Thin Sections

Schumacher and Halbsguth first demonstrated ectodesmata as pores or channels in the epidermal cell walls in haustoria of Cuscuta odorata L. by light microscopy in tissues fixed in a sublimate fixative (30% ethyl alcohol, 30 ml:glacial acetic acid, 10 ml: 65% nitric acid, 1 ml: 40% formaldehyde, 5 ml: oxalic acid, 2 g: mecuric chloride to saturation 2-3 g). Other workers have published electron micrographs of structures transversing the outer epidermal cell in thin sections of plant leaves that have been interpreted as ectodesmata. Such structures are evident following treatment with Hg++ or Ag+ salts and are only rarely observed by electron microscopy. If ectodesmata exist without such treatment, and are not artefacts, they would afford natural pathways of entry for applied foliar solutions and plant viruses.

The Action of Nitric Acid on Aluminium

1916 ◽  
Vol 82 (2122supp) ◽  
pp. 150-150
Author(s):  
R. Seligman ◽  
P. Williams
Keyword(s):  
Nitric Acid
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