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41381-97-9

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41381-97-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 41381-97-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,3,8 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 41381-97:
(7*4)+(6*1)+(5*3)+(4*8)+(3*1)+(2*9)+(1*7)=109
109 % 10 = 9
So 41381-97-9 is a valid CAS Registry Number.

41381-97-9Relevant academic research and scientific papers

PHARMACEUTICAL COMPOUNDS

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Page/Page column 62-63, (2021/02/26)

Benzodiazepine derivatives of formula (I): (I) wherein: each of R1 and R2 is independently H or halo; either (i) T is N, Z is C, ---a--- and ---c--- are bonds, and ---b--- and ---d--- are absent; or (ii) T is C, Z is N, ---b--- and ---d--- are bonds, and ---a--- and ---c--- are absent; each of R3 and R4 is independently halo, -OR6, -NR6R7, -COR8, -C(O)OR8, -CON(R8)2 or -R6; R5 is H or halo; each of R6 and R7 is independently H or a group selected from C1-C6 alkyl, C3-C10 cycloalkyl, C6-C10 aryl, 4- to 10-membered heterocyclyl and 4- to 10-membered heteroaryl, the group being unsubstituted or substituted; R8 is H or C1-C6 alkyl, each R8 being the same or different when two are present; n is 0 or 1; and one of V, W, X and Y is N or CH and the other three are CH; and the pharmaceutically acceptable salts thereof are inhibitors of RSV and can therefore be used to treat or prevent an RSV infection.

Electrochemical chlorination and bromination of electron-deficient C[sbnd]H bonds in quinones, coumarins, quinoxalines and 1,3-diketones

Yu, Dan,Ji, Ruixue,Sun, Zhihui,Li, Wenjie,Liu, Zhong-Quan

supporting information, (2021/11/16)

The electrochemistry-promoted chlorination and bromination of electron-deficient C[sbnd]H bonds was developed, using quinones, coumarins, quinoxalines and 1,3-diketones. This protocol features readily available and safe halogen sources (hydrochloric acid and KBr), high site-selectivity and mild reaction conditions. It could provide an efficient access to a series of chlorinated and brominated quinones, coumarins, quinoxalines and 1,3-diketones.

SAR Studies of the Leupyrrins: Design and Total Synthesis of Highly Potent Simplified Leupylogs

Wosniok, Paul R.,Knopf, Christopher,Dreisigacker, Sandra,Orozco-Rodriguez, J. Manuel,Hinkelmann, Bettina,Mueller, Peter P.,Br?nstrup, Mark,Menche, Dirk

supporting information, p. 15074 - 15078 (2020/10/19)

Leupyrrins are highly potent antifungal agents. A structure–activity-relationship study of natural and synthetic derivatives is reported which reveals important insights into the biological relevance of several structural subunits leading to the discovery

Metal-Free Halogenation of N-Substituted Enaminoesters and Enaminones: A Facile Access to Functionalized α,α-Dihaloimines

Bie, Songtao,Li, Fangyi,Li, Zheng,Qiu, Changfu,Qiu, Chuanjiang,Suo, Tongchuan,Wang, Chunhua,Yu, Heshui

, p. 1301 - 1314 (2020/04/15)

An efficient and general method for the synthesis of functionalized α,α-dihaloimines via halogenation of N-substituted enaminoesters and enaminones is described. This reaction, in which both α,α-dihaloimines and mixed α,α-dihaloimines could be achieved in

CALPAIN MODULATORS AND THERAPEUTIC USES THEREOF

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Paragraph 0485, (2018/04/17)

Disclosed herein are small molecule calpain modulator compositions, pharmaceutical compositions, the use and preparation thereof.

Copper Triflate Mediated α-Monohalogenation of α-Diazo β-Ketosulfones with Ammonium Halides

Chan, Chieh-Kai,Wang, Heui-Sin,Hsu, Ru-Ting,Chang, Meng-Yang

, p. 2045 - 2056 (2017/04/26)

Copper triflate mediated α-monohalogenation of α-diazo β-ketosulfones with ammonium halides provides the corresponding α-halo β-ketosulfones. Different metal triflates are investigated for this facile and efficient transformation. A plausible mechanism is proposed.

Trimethylchlorosilane-Mediated Mild α-Chlorination of 1,3-Dicarbonyl Compounds Promoted by Phenyliodonium Diacetate

Chong, Siying,Su, Yingpeng,Wu, Lili,Zhang, Weigang,Ma, Junyan,Chen, Xiaowei,Huang, Danfeng,Wang, Ke-Hu,Hu, Yulai

, p. 1359 - 1370 (2016/05/02)

Trimethylchlorosilane was used as chlorine source for the α-chlorination of 1,3-dicarbonyl compounds with phenyliodonium diacetate as oxidant at room temperature. The reaction allows the selective synthesis of α-monochlorinated products from different kinds of 1,3-dicarbonyl compounds in good yield. The potential possibility of this conversion for bromination has also been investigated.

Imidazole-based pinanamine derivatives: Discovery of dual inhibitors of the wild-type and drug-resistant mutant of the influenza A virus

Dong, Jianghong,Chen, Shengwei,Li, Runfeng,Cui, Wei,Jiang, Haiming,Ling, Yixia,Yang, Zifeng,Hu, Wenhui

, p. 605 - 615 (2015/12/30)

We previously reported potent hit compound 4 inhibiting the wild-type influenza A virus A/HK/68 (H3N2) and A/M2-S31N mutant viruses A/WS/33 (H1N1), with its latter activity quite weak. To further increase its potency, a structure-activity relationship study of a series of imidazole-linked pinanamine derivatives was conducted by modifying the imidazole ring of this compound. Several compounds of this series inhibited the amantadine-sensitive virus at low micromolar concentrations. Among them, 33 was the most potent compound, which was identified as being active on an amantadine-sensitive virus through blocking of the viral M2 ion channel. Furthermore, 33 markedly inhibited the amantadine-resistant virus (IC50 = 3.4 μM) and its activity increased by almost 24-fold compared to initial compound, with its action mechanism being not M2 channel mediated.

Preparation of iodonium ylides: Probing the fluorination of 1,3-dicarbonyl compounds with a fluoroiodane

Geary, Gemma C.,Hope, Eric G.,Singh, Kuldip,Stuart, Alison M.

, p. 16501 - 16506 (2015/03/04)

The isolation of iodonium ylide 8, from the reaction of fluoroiodane 1 with ethyl 3-oxo-3-phenylpropanoate 5 in the presence of potassium fluoride, provides strong evidence that 1,3-dicarbonyl compounds undergo an addition reaction with fluoroiodane 1 to form an iodonium intermediate which can be deprotonated to generate an iodonium ylide. In the presence of TREAT-HF, however, the iodonium intermediate reacts to form the 2-fluoro-1,3-dicarbonyl product and we propose that fluoroiodane 1 simulates electrophilic fluorination via an addition/substitution mechanism. Further evidence to support this mechanism was obtained by successfully reacting the isolated iodonium ylide 8 with TREAT-HF, hydrochloric acid, acetic acid and p-toluenesulfonic acid to form the 2-fluoro-, 2-chloro-, 2-acetyl- and 2-tosyl-1,3-ketoesters respectively. This journal is

Vanadium-catalyzed chlorination under molecular oxygen

Moriuchi, Toshiyuki,Fukui, Yasuhiro,Kato, Satoshi,Kajikawa, Tomomi,Hirao, Toshikazu

, p. 177 - 180 (2015/03/04)

A catalytic chlorination of ketones was performed by using a vanadium catalyst in the presence of Bu4NI and AlCl3 under atmospheric molecular oxygen. This catalytic chlorination could be applied to the chlorination of alkenes to give the corresponding vic-dichlorides. AlCl3 was found to serve as both a Lewis acid and a chloride source to induce the facile chlorination. A combination of Bu4NI and AlI3 in the presence of a vanadium catalyst under atmospheric molecular oxygen induced the iodination of ketones.

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