Hypofluorites and their Application in Organic Synthesis

Mukhametshin, F. M.

doi:10.1007/978-3-642-74763-2_3

Cited by 7 publications

(5 citation statements)

References 139 publications

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“…We have noted at the beginning of this review the excellent but early reviews of Hesse and Mukhametshin covering the CF 3 OF chemistry until 1977 6 and 1980, respectively. In 1986 Purrington wrote a review on F 2 and various hypofluorites and their role in organic chemistry, and Rozen published several monographs including an account of his research with fluorine and various hypofluorites…”

Section: Recent Reviews On Fluorination Methods Involving the Of Moietymentioning

confidence: 99%

“…The 19 F and 1 H NMR strongly supported the existence of AcOF. When it was prepared in the absence of AcOH the 19 F NMR showed a slightly broad signal at +168 ppm ( 4 J HF = 3.6 Hz), a very characteristic chemical shift for a fluoroxy group . The 1 H NMR revealed the methyl group of the AcOF resonating at 2.12 ppm (d, 4 J HF = 3.6 Hz).…”

Section: Acetyl Hypofluorite and Higher Homologsmentioning

confidence: 99%

“…While its use declined rapidly because of safety problems, the known, but practically never used fluoroxytrifluoromethane, CF 3 OF, started to take off following the pioneering work of Barton and Hesse . In late 1970s a large body of work with this reagent had been reviewed by Hesse and Mukhametshin, but soon afterward the number of publications with CF 3 OF dropped sharply since its commercial production encountered problems. Some works describing mono- and bishypofluorites with higher perfluoroalkyl chains have also appeared, but these reagents did not gain much popularity since usually they were not commercially available and required F 2 and special conditions for their synthesis.…”

Section: Introductionmentioning

confidence: 99%

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Selective Fluorinations by Reagents Containing the OF Group

Rozen

1996

Chem. Rev.

123

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Section: Recent Reviews On Fluorination Methods Involving the Of Moietymentioning

confidence: 99%

Section: Acetyl Hypofluorite and Higher Homologsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Selective Fluorinations by Reagents Containing the OF Group

Rozen

1996

Chem. Rev.

123

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“…Продолжаются исследования по взаимодействию трубопроводов с грунтами при строительстве, капитальном ремонте и эксплуатации. По результатам исследований получен патент на изобретение [30].…”

Section: рисунок 4 возможное применение дирижаблейunclassified

Reliable and Safe Energy Resources Transportation From Russia to China

Wei

Mamliev

Мустафин

et al. 2019

ntj-oil

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“…Стационарные устройства механического действия, рассмотренные в работах [1][2][3], должны срезать сосульки «скалывающими элементами» или «элементами сбивания», закрепленными на каретке, движущейся вдоль карниза. К недостаткам данных устройств относится сложность конструкции и ограничение по размеру и положению сосулек (они должны быть небольшими и расположены приблизительно на одном расстоянии от стены).…”

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Experimental modeling of thermophysical processes on de-icing cornices using solar radiation energy

Myrzina

Ozerova

Zverev

et al. 2022

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Removing icicles from the roofs of buildings is a major problem for most cities. The paper provides an overview of a large number of patented methods and devices for combating icicles and ice on the eaves of roofs. However, there are very few really manufactured and tested products. The aim of the work was to test experimental samples of anti-icing cornices using solar radiation energy in artificially created conditions. For thermophysical experiments, more than 30 models of cornices were made from different materials with different paint coatings. During the experiments, it was found that the black color RAL 9005 has the greatest absorption capacity, and the gray graphite RAL 7074 is very close to it. The blue RAL 5005 and green RAL 6029 have a lower absorption capacity. The red RAL 3000 has a noticeably lower absorption capacity than blue and green. The least heated in the sun was the white RAL 9003 cornice model and galvanized steel. The dependence of the absorption capacity of cornices on the degree of their roughness and the method of applying the paint coating is not revealed. Due to the energy of solar radiation, anti-icing cornices can have a temperature 40-45 °C above the ambient temperature. Even in the shade, the temperature of the black cornices exceeds the ambient temperature by 4-5 °C. The wind blowing at an average speed of 2.5 m/s reduces the temperature difference between the experimental cornices and the air in the shade by about 2 times. The presence of a stretch film on the part of the cornice that will be placed under the roof allows you to reduce heat loss by one and a half to two times.

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Hypofluorites and their Application in Organic Synthesis

Cited by 7 publications

References 139 publications

Selective Fluorinations by Reagents Containing the OF Group

Selective Fluorinations by Reagents Containing the OF Group

Reliable and Safe Energy Resources Transportation From Russia to China

Experimental modeling of thermophysical processes on de-icing cornices using solar radiation energy

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