Structure–reactivity correlations in nucleophilic substitution reactions of Y-substituted phenyl X-substituted benzoates with anionic and neutral nucleophiles
作者:Ik-Hwan Um、Ji-Youn Lee、Mizue Fujio、Yuho Tsuno
DOI:10.1039/b607194e
日期:——
A kineticstudy is reported for the reactions of 4-nitrophenyl X-substituted benzoates (1a-1) and Y-substituted phenyl benzoates (2a-1) with two anionic nucleophiles (OH(-) and CN(-)) and three amines (piperidine, hydrazine, and glycylglycine) in 80 mol% H(2)O-20 mol% dimethyl sulfoxide (DMSO) at 25.0 +/- 0.1 degrees C. Each Hammett plot exhibits two intersecting straight lines for the reactions of
A new convenient synthesis of aroyl cyanides via the formation of cyanohydrin nitrate intermediates
作者:Takuya Sueda、Masashi Shoji、Kiyoharu Nishide
DOI:10.1016/j.tetlet.2008.06.034
日期:2008.8
The treatment of α-bromoarylacetonitriles with AgNO3 generates cyanohydrin nitrate intermediates, which easily eliminate nitrous acid with the formation of carbonyl bond to afford aroyl cyanides in good to high yields.
Oxime amides and hydrazone amides having fungicidal activity
申请人:Monsanto Technology LLC
公开号:US06359156B1
公开(公告)日:2002-03-19
The invention relates to compounds having usefulness in the control of Take-All disease in plants, particularly cereals, a method for the control of Take-All disease, and fungicidal compositions for carrying out the method. Compounds of the invention are oximes or hydrazones of arylgloxamides or heteroarylglyoxamides or cycloalkenylglyoxamides.
AgI-PEG400-KI Catalyzed Environmentally Benign Synthesis of Aroyl Cyanides Using Potassium Hexacyanoferrate(II) as the Cyanating Agent
作者:Zheng Li、Shengyi Shi、Jingya Yang
DOI:10.1055/s-2006-950407
日期:2006.9
A practical cyanation of aroyl chlorides with 0.2 equivalent of non-toxic cyanide source, K 4 [Fe(CN) 6 ], 3 mol% AgI, 4 mol% PEG-400, and 3 mol% KI as the catalyst system is described. The reactions were performed in DMF at room temperature and provided the corresponding aroylcyanides in 64-89% yield, typically in less than ten hours.
Acyl Cyanides as Bifunctional Reagent: Application in Copper-Catalyzed Cyanoamidation and Cyanoesterification Reaction
作者:Zhengwang Chen、Xiaowei Wen、Weiping Zheng、Ruolan He、Dou Chen、Dingsheng Cao、Lipeng Long、Min Ye
DOI:10.1021/acs.joc.9b03500
日期:2020.4.17
Cu-catalyzed domino decyanation and cyanation reaction of acyl cyanides with amines or alcohols have been developed. The cyanosources were generated in situ via C–CN cleavage yielding the corresponding cyano substituted amides or esters in moderate to excellent yields. This approach features a cheap copper catalyst, domino decyanation and cyanation reaction, readily available starting materials, broad