72936-38-0Relevant academic research and scientific papers
Ketones as electrophile in nitroaldol reaction: Synthesis of β,β-disubstituted-1,3-dinitroalkanes and allylic nitro compounds
Costa, Jeronimo S.,Gomes, Alex O.,Pereira, Vera Lúcia P.,de Souza, Douglas L. F.
, p. 1575 - 1583 (2021/07/06)
β,β-Disubstituted-1,3-dinitro compounds were obtained exclusively with an overall yield of 83% through a domino nitroaldol/elimination/1,4-addition process, when excess nitromethane was added to cyclohexanone or butanone using DBU (1,8-diazabicyclo[5.4.0]
Method for taking DAST reagent as removing reagent to synthetize conjugated nitroolefin substituted series derivative
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Paragraph 0078-0081, (2018/12/13)
The invention discloses a preparation method of taking a DAST reagent as a removing reagent to synthesize a conjugated nitroolefin substituted series derivative. The preparation method comprises the following steps that a carbonyl compound (compound II) i
Asymmetric organocatalytic Michael-hemiacetalization reaction: Access to chiral spiro cis-δ-lactones by in situ oxidation of spiro δ-lactols
Wei, Mo-Hui,Zhou, Yi-Rong,Gu, Liang-Hu,Luo, Fan,Zhang, Fang-Lin
supporting information, p. 2546 - 2548 (2013/06/27)
Asymmetric tandem Michael-hemiacetalization reaction between 1-nitromethylcycloalkanol and α,β-unsaturated aldehydes was investigated, which provided an efficient and facile synthesis for spiro cis-δ-lactones by in situ oxidation of spiro δ-lactols in goo
Methylcarbonate and bicarbonate phosphonium salts as catalysts for the nitroaldol (Henry) reaction
Fabris, Massimo,Noe, Marco,Perosa, Alvise,Selva, Maurizio,Ballini, Roberto
experimental part, p. 1805 - 1811 (2012/04/17)
Phosphonium ionic liquids exchanged with bicarbonate and methylcarbonate anions (CILs) exhibit catalytic performances comparable to those of sterically hindered (non nucleophilic) organosuperbases such as DBU. At 25-50 °C, under solventless conditions, CI
Sulfone substituted imidazo ring ethers
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Page/Page column 46, (2010/11/27)
Imidazo ring compounds (e.g., imidazoquinolines, 6,7,8,9-tetrahydroimidazoquinolines, imidazonaphthyridines, and 6,7,8,9-tetrahydroimidazonaphthyridines) with a sulfide-, sulfinyl-, or sulfonyl-containing ether substituent at the 1-position, pharmaceutica
Rapid microwave-assisted Henry reaction in solvent-free processes
Gan, Changsheng,Chen, Xing,Lai, Guoyin,Wang, Zhiyong
, p. 387 - 390 (2007/10/03)
The solvent-free Henry reactions of nitromethane with a series of carbonyl compounds were studied under microwave irradiation. By using different bases and Lewis acids, the solvent-free nitroaldol reaction of aldehydes were realized under microwave condition, affording the corresponding adducts with high yields. Particularly, aliphatic ketones, which were hardly carried out this reaction, could be the reaction substrates in the nitroaldol reactions by employment of 1,4-diazabicyclo[2.2.2]octane (DABCO) under a similar conditions, giving the corresponding adducts with moderate to good yields. Georg Thieme Verlag Stuttgart.
SUBSTITUTED IMIDAZOQUINOLINES, IMIDAZOPYRIDINES, AND IMIDAZONAPHTHYRIDINES
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Page/Page column 88-89, (2010/10/20)
Imidazo-quinoline, -pyridine, and -naphthyridine ring systems (particularly quinolines, tetrahydroquinolines, pyridines, [1,5]naphthyridines, [1,5]tetrahydronaphthyridines) substituted at the 1-position with a cyclic substituent, pharmaceutical compositions containing the compounds, methods of making these compounds, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.
ARYL SUBSTITUTED IMIDAZONAPHTHYRIDINES
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Page/Page column 132, (2008/06/13)
Imidazonaphthyridine ring systems substituted with an aryl substituent, pharmaceutical compositions containing the compounds, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of
An efficient method for the preparation of β-nitroalkanols in room temperature ionic liquids
Qian, Weixing,Ju, Fengyang,Bao, Weiliang,Zhang, Yongmin
, p. 154 - 155 (2007/10/03)
β-Nitroalkanols were obtained in good to high yields from carbonyl substrates and nitroalkanes in the room temperature ionic liquids using DBU as catalyst under mild reaction conditions and short reaction times.
P(RNCH2CH2)3N: An Efficient Promoter for the Nitroaldol (Henry) Reaction
Kisanga, Philip B.,Verkade, John G.
, p. 4298 - 4303 (2007/10/03)
The use of catalytic amounts of the proazaphosphatranes P(MeNCH2CH2)3N, P(i-PrNCH2CH2)3N and P(HNCH2CH2)(i-PrNCH2CH2) 2N as nonionic bases in the reaction of nitroalkanes with carbonyl compounds is reported. The reaction proceeds at room temperature in the presence of 2.2 equiv of magnesium sulfate to produce the corresponding β-nitroalkanols in generally superior yields. Aldehydes react quantitatively in 5-60 min, whereas ketones require up to 3 h to react with nitromethane and up to 7 h for the reaction of ketones with higher nitroalkanes.
