- Does electrophilic activation of nitroalkanes in polyphosphoric acid involve formation of nitrile oxides?
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The mechanistic rationale involving activation of nitroalkanes towards interaction with nucleophilic reagents in the presence of polyphosphoric acid (PPA) was re-evaluated. Could nitrile oxide moieties be formed during this process? This experiment demonstrates that at least in some cases this could happen, as generated nitrile oxides were successfully intercepted as adducts of [3 + 2] cycloadditions. This journal is
- Aksenov, Alexander V.,Aksenov, Dmitrii A.,Aksenov, Nicolai A.,Kirilov, Nikita K.,Kurenkov, Igor A.,Nobi, Mezvah A.,Rubin, Michael,Skomorokhov, Anton A.,Sorokina, Elena A.
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p. 35937 - 35945
(2021/12/02)
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- Method for directly synthesizing furoxan from methyl ketone
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The invention discloses a method for directly synthesizing furoxan from methyl ketone, and belongs to the technical field of organic chemical synthesis. According to the method, methyl ketone is usedas a raw material, methyl ketone and a green nitration r
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Paragraph 0046; 0047; 0048
(2020/01/08)
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- Synthesis of Furoxans and Isoxazoles via Divergent [2 + 1 + 1 + 1] Annulations of Sulfoxonium Ylides and tBuONO
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We have presented a simple and new method for the divergent assembly of furoxans and isoxazoles in which the [2 + 1 + 1 + 1] annulation reaction of sulfoxonium ylides is reported for the first time. When the reaction was performed using tBuONO
- Tang, Zhonghe,Zhou, Yao,Song, Qiuling
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p. 5273 - 5276
(2019/09/03)
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- Solvent-free mechanochemical synthesis of diacylfuroxans
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Acetophenones with a variety of substituents could be converted to diacylfuroxans in a solvent-free reaction by combining the reagents Fe(NO3)3·9H2O and P2O5 under high-speed ball milling. This reacti
- Gu, Zhen-Zhen,Guo, Feng-Chao,Zhang, Pu,Qin, Yu-Jun,Guo, Zhi-Xin
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supporting information
p. 1687 - 1690
(2019/06/05)
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- 10-Hydroxy-7-arylindeno[1,2-b]-1,2,5-oxadiazolo[3,4-d]pyridines and 7- aryl-10-oxoindeno[1,2-b]-1,2,5-oxadiazolo[3,4-d]pyridines-synthesis, spectra, and polymorphism
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The novel dyes 7-aryl- 10-oxoindeno[1,2-b]-1,2,5-oxadiazolo[3,4-d]- pyridines (4) and 7-aryl-10-hydroxyindeno[1,2-b]-1,2,5-oxadiazolo[3,4-d]- pyridines (5) have been prepared from acetophenone derivatives. While compounds (4) exhibit a dark red color, the
- Mataka, Shuntaro,Gorohmaru, Hideki,Thiemann, Thies,Sawada, Tsuyoshi,Takahashi, Kazufumi,Tori-i, Akiyoshi
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p. 895 - 902
(2007/10/03)
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