378786-44-8Relevant academic research and scientific papers
Photoredox-Induced Intramolecular 1,5-H Transfer Reaction of Aryl Iodides for the Synthesis of Spirocyclic γ-Lactams
Chen, Jian-Qiang,Chang, Rui,Lin, Jun-Bing,Luo, Yong-Chun,Xu, Peng-Fei
, p. 2395 - 2398 (2018)
This work develops a photocatalysis method for the synthesis of γ-spirolactams through a tandem intramolecular 1,5-HAT reaction-cyclization process. A variety of novel γ-spirolactams are prepared in good to excellent yields with this method. This transfor
Dibrominative Spirocyclization of 2-Butynolyl Anilides: Synthesis of gem-Dibromospirocyclic Benzo[ d][1,3]oxazines and Their Application in the Synthesis of 4 H-Furo[3,2- b]indoles
Chaisan, Nattawadee,Ruengsangtongkul, Sureeporn,Tummatorn, Jumreang,Ruchirawat, Somsak,Chainok, Kittipong,Thongsornkleeb, Charnsak
, p. 4671 - 4698 (2021/04/06)
The combination of catalytic aqueous hydrochloric acid (HCl) and N-bromosuccinimide (NBS) generated electrophilic bromine monochloride (BrCl), which readily induced spiroannulation of 2-alkynolyl anilides (n = 1-3) to form gem-dibromospirocyclic benzo[d][
Intramolecular 1,5-H transfer reaction of aryl iodides through visible-light photoredox catalysis: A concise method for the synthesis of natural product scaffolds
Chen, Jian-Qiang,Wei, Yun-Long,Xu, Guo-Qiang,Liang, Yong-Min,Xu, Peng-Fei
supporting information, p. 6455 - 6458 (2016/05/24)
The intramolecular 1,5-H transfer reaction of the aryl radicals generated from unactivated aryl iodides by photocatalysis is described. The features of this transformation are operational simplicity, excellent yields, mild reaction conditions, and good fu
Challenges associated with the synthesis of unusual o-carboxamido stilbenes by the Heck protocol: Intriguing substituent effects, their toxicological and chemopreventive implications
Kee, Chin Hui,Ariffin, Azhar,Awang, Khalijah,Takeya, Koichi,Morita, Hiroshi,Hussain, Salmaan Inayat,Chan, Kok Meng,Wood, Pauline J.,Threadgill, Michael D.,Lim, Chuan Gee,Ng, Seikweng,Weber, Jean Frederic F.,Thomas, Noel F.
experimental part, p. 5646 - 5660 (2011/02/18)
The syntheses of fourteen unusual o-carboxamido stilbenes by the Heck protocol revealed surprising complexity related to intriguing substituent effects with mechanistic implications. The unexpected cytotoxic and chemopreventive properties also seem to be substituent dependent. For example, although stilbene 15d (with a 4-methoxy substituent) showed cytotoxicity on HT29 colon cancer cells with an IC50 of 4.9 μM, the 3,4-dimethoxy derivative (15c) is inactive. It is interesting to observe that the 3,5-dimethoxy derivative (15e) showed remarkable chemopreventive activity in WRL-68 fetal hepatocytes, surpassing the gold standard, resveratrol. The resveratrol concentration needed to be 5 times higher than that of 15e to produce comparable elevation of NQO1.
Synthesis, structure, and chemoselective reactivity of N-(2-iodylphenyl) acylamides: Hypervalent iodine reagents bearing a pseudo-six-membered ring.scaffold
Ladziata, Uladzimir,Koposov, Alexey Y.,Lo, Ka Y.,Willging, Jeff,Nemykin, Victor N.,Zhdankin, Viktor V.
, p. 7127 - 7131 (2007/10/03)
A pseudo-benziodoxazine structure with intramolecular secondary I...O bonding, as shown by X-ray analysis, is seen in a series of N-(2-iodylphenyl) acylamides prepared from 2-iodoaniline (see scheme). These compounds contain a six-membered pseudocyclic scaffold about an iodine(v) center and are able to oxidize either alcohols or sulfides, with the reactivity depending largely on the substitution pattern on the amide group adjacent to the iodyl moiety. (Chemical Equation Presented).
1-(N-phenylaminoalkyl)piperazine derivatives substituted at position 2 of the phenyl ring
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, (2008/06/13)
The present invention is directed to novel 1-(N-phenylaminoalkyl)piperazine derivatives substituted at the position 2 of the phenyl ring. Pharmaceutical compositions comprising the compounds of the invention also are contemplated. The compounds of the pre
