Category: 128-09-6

Gu, Yan; Dai, Lei; Mao, Kaimin; Zhang, Jinghang; Wang, Chang; Zhao, Liming; Rong, Liangce published the artcile< Time-Economical Radical Cascade Cyclization/Haloazidation of 1,6-Enynes: Construction of Highly Functional Succinimide Derivatives>, Synthetic Route of 128-09-6, the main research area is phenyl phenylpropioloyl methacrylamide halosuccinimide azidotrimethylsilane tandem radical cyclization haloazidation; halobenzylidene azidomethyl phenylsuccinimide preparation diastereoselective regioselective green chem; azidotrimethylsilane phenyl phenylpropioloyl methacrylamide tandem radical cyclization azidation; benzylidene azidomethyl phenylsuccinimide preparation diastereoselective regioselective green chem.

A “”time-economical”” radical cascade cyclization/haloazidation of 1,6-enynes provided a direct approach to access highly functional succinimide compounds Moderate to excellent yields along with excellent Z/E ratio were obtained under the reaction features of broad substrate scope, good functional group tolerance, and mild reaction conditions.

Organic Letters published new progress about Alkenynes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Synthetic Route of 128-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Manisha; Gupta, Shiv Shankar; Dhiman, Ankit Kumar; Sharma, Upendra published the artcile< Rh(III)-Catalyzed Selective C7 Halogenation of Indolines>, SDS of cas: 128-09-6, the main research area is haloindoline preparation regioselective halogenation halosuccinimide rhodium catalyst; pyrimidylindoline halosuccinimide halogenation rhodium catalyst regioselective.

An efficient Rh-catalyzed catalytic method has been developed for selective C7 halogenation of N-pyrimidyl indolines I (R = H, 5-Ph, 6-F, OCH2Ph, etc., R1 = H, 2-EtO2C, 3-Me, 2-Me, R2 = H) with N-halosuccinimides (halo = chloro, bromo, iodo) to produce the corresponding halides I (R2 = Br, Cl, I) in good to excellent yields. The advantages of this strategy include broad substrate scope and excellent regioselectivity for C7 functionalization of the indolines and feasibility at the gram scale level. Various control experiments have been performed to understand the reaction pathway. Applicability of current methodol. has been demonstrated by indole synthesis and post-transformation of the C7 halogenated indolines into different valuable mols. The reaction is also applicable to the preparation of halogenated carbazoles II (R2 = Br, Cl, I) and tetrahydroquinolines III (R2 = Br, I).

European Journal of Organic Chemistry published new progress about Carbazoles Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, SDS of cas: 128-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Ha, Hyeonbin; Kim, Youngik; Kim, Dopil; Lee, Jihyun; Song, Yoodae; Kim, Suyeon; Park, Myung Hwan; Kim, Youngjo; Kim, Hyungjun; Yoon, Minyoung; Kim, Min published the artcile< Effect of the Metal within Regioisomeric Paddle-Wheel-Type Metal-Organic Frameworks>, Product Details of C4H4ClNO2, the main research area is transition metal DABCO terephthalate preparation gas adsorption calculated structure; crystal structure zinc cobalt amino chloro regioisomeric benzenedicarboxylate MOF; coordination polymers; flexibility; metal cation effect; metal-organic frameworks; regioselectivity.

The effect of metal on the degree of flexibility upon evacuation of metal-organic frameworks (MOFs) was revealed with positional control of the organic functionalities. Although Co-, Cu-, and Zn-based DMOFs (DMOF = DABCO MOF, DABCO = 1,4-diazabicyclo[2.2.2]octane) with terephthalate containing ortho-ligands (2,3-NH2Cl) have frameworks that are inflexible upon evacuation, MOFs with para-ligands (2,5-NH2Cl) showed different N2 uptake amounts after evacuation by metal exchange. Considering that the structural analyses were not fully sufficiently different to explain the drastic changes in N2 adsorption after evacuation, quantum chem. simulation was explored. A new index (η) was defined to quantify the regularity around the metal based on differences in the O-metal-O angles. Within 2,5-NH2Cl, the η value becomes larger as the metal are varied from Co to Zn. A large η value means that the structures around the metal center are less ordered. These results can be used to explain flexibility changes upon evacuation by altering the metal cation in this regioisomeric system.

Chemistry – A European Journal published new progress about Crystal structure. 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Product Details of C4H4ClNO2.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Ruffoni, Alessandro; Julia, Fabio; Svejstrup, Thomas D.; McMillan, Alastair J.; Douglas, James J.; Leonori, Daniele published the artcile< Practical and regioselective amination of arenes using alkyl amines>, Category: chlorides-buliding-blocks, the main research area is aromatic amine photoredox synthesis regioselective amination arene alkylamine.

The formation of carbon-nitrogen bonds for the preparation of aromatic amines is among the top five reactions carried out globally for the production of high-value materials, ranging from from bulk chems. to pharmaceuticals and polymers. As a result of this ubiquity and diversity, methods for their preparation impact the full spectrum of chem. syntheses in academia and industry. In general, these mols. are assembled through the stepwise introduction of a reactivity handle in place of an aromatic C-H bond (i.e., a nitro group, halogen or boronic acid) and a subsequent functionalization or cross-coupling. Here we show that aromatic amines can be constructed by direct reaction of arenes and alkyl amines using photocatalysis, without the need for pre-functionalization. The process enables the easy preparation of advanced building blocks, tolerates a broad range of functionalities, and multigram scale can be achieved via a batch-to-flow protocol. The merit of this strategy as a late-stage functionalization platform has been demonstrated by the modification of several drugs, agrochems., peptides, chiral catalysts, polymers and organometallic complexes.

Nature Chemistry published new progress about Amination, regioselective (photochem.). 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Category: chlorides-buliding-blocks.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

He, Piao; Liu, Jiahao; Wu, Jinting; Mei, Haozheng; Zhang, Jianguo published the artcile< Dimethoxycarbonyl Groups Surrounding a Symmetric Diaminobistetrazole Ring: Exploring New Green Energetic Materials>, Computed Properties of 128-09-6, the main research area is energetic material methoxycarbonyl aminobistetrazole synthesis; sodium methoxycarbonyl aminobistetrazolate energetic material synthesis; DFT calculations; detonation performance; dimethoxycarbonyl diaminobistetrazole; energetic materials.

A novel oxygen-containing dimethoxycarbonyl diaminobistetrazole was synthesized via a facile strategy. The sodium salt based on this ligand was prepared and these two compounds were fully characterized by using elemental anal., IR and mass spectrometry and single-crystal X-ray diffraction. Their d., heats of formation, thermal stability, sensitivity, and the energetic properties are investigated by EXPLO5 code. These newly synthesized compounds possess high pos. heats of formation and detonation heats. the dimethoxycarbonyl diaminobistetrazole exhibits good detonation performance and acceptable stability, and might be a potential eco-friendly alternative of lead azide. The present study contributes to the development of tetrazole derivatives as new energetic materials.

Chemistry – An Asian Journal published new progress about Detonation enthalpy. 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Computed Properties of 128-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Ivanova, Yu. B.; Chizhova, N. V.; Mamardashvili, N. Zh. published the artcile< Synthesis and Spectral and Coordination Properties of Perhalogenated Tetraphenylporphyrins>, Quality Control of 128-09-6, the main research area is zinc perhalogenated tetraphenylporphyrin preparation complexation kinetics.

The reaction of [5,10,15,20-tetrakis(2,6-dichlorophenyl)porphyrinato]zinc(II) with N-halosuccinimides in chloroform-MeOH, chloroform-butan-1-ol, or DMF gave [2,3,7,8,12,13,17,18- octachloro(bromo)-5,10,15,20-tetrakis(2,6-dichlorophenyl)porphyrinato]zinc(II) which were treated with HO2CCF3 to obtain the corresponding free porphyrin ligands. The synthesized compounds and their dianions were studied by electronic absorption and 1H NMR spectroscopy and mass spectrometry. The kinetic parameters of the complexation of these ligands with Zn in the systems MeCN-Zn(OAc)2 and MeCN-Zn(OAc)2-1,8-diazabicyclo[5.4.0]undec-7-ene in the temperature range 298-318 K were determined

Russian Journal of General Chemistry published new progress about Complexation. 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Quality Control of 128-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Cernicharo, J.; Cabezas, C.; Agundez, M.; Tercero, B.; Pardo, J. R.; Marcelino, N.; Gallego, J. D.; Tercero, F.; Lopez-Perez, J. A.; de Vicente, P. published the artcile< TMC-1, the starless core sulfur factory: discovery of NCS, HCCS, H2CCS, H2CCCS, and C4S and detection of C5S>, Category: chlorides-buliding-blocks, the main research area is chlorosuccinimide thioketene sulfur Taurus Mol cloud; Astrochemistry; ISM: individual (TMC-1); ISM: molecules; line: identification; molecular data.

We report the detection of the sulfur-bearing species NCS, HCCS, H2CCS, H2CCCS, and C4S for the first time in space. These mols. were found towards TMC-1 through the observation of several lines for each species. We also report the detection of C5S for the first time in a cold cloud through the observation of five lines in the 31-50 GHz range. The derived column densities are N(NCS) = (7.8 ± 0.6) x 1011 cm-2, N(HCCS) = (6.8 ± 0.6) x 1011 cm-2, N(H2CCS) = (7.8 ± 0.8) x 1011 cm-2, N(H2CCCS) = (3.7 ± 0.4) x 1011 cm-2, N(C4S) = (3.8 ± 0.4) x 1010 cm-2, and N(C5S) = (5.0 ± 1.0) x 1010 cm-2. The observed abundance ratio between C3S and C4S is 340, that is to say a factor of approx. one hundred larger than the corresponding value for CCS and C3S. The observational results are compared with a state-of-the-art chem. model, which is only partially successful in reproducing the observed abundances. These detections underline the need to improve chem. networks dealing with S-bearing species.

Astronomy & Astrophysics published new progress about Clouds (Taurus Mol.). 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Category: chlorides-buliding-blocks.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Irving, Charles D.; Floreancig, Jack T.; Laulhe, Sebastien published the artcile< Amide Synthesis through the In Situ Generation of Chloro- and Imido-Phosphonium Salts>, Application In Synthesis of 128-09-6, the main research area is amide synthesis in situ generation chlorophosphonium imidophosphonium salt.

We describe a methodol. for the amidation of carboxylic acids by generating phosphonium salts in situ from N-chlorophthalimide and triphenylphosphine. Aliphatic, benzylic, and aromatic carboxylic acids can be transformed into their amide counter parts using primary and secondary amines. This functional group interconversion is achieved at room temperature in good to excellent yields. Mechanistic work shows the in situ formation of chloro- and imido-phosphonium salts that react as activating agents for carboxylic acids and generate an acyloxy-phosphonium species.

ACS Omega published new progress about Aliphatic acids Role: RCT (Reactant), RACT (Reactant or Reagent). 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Application In Synthesis of 128-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Hirose, Yuuka; Yamazaki, Mirai; Nogata, Misa; Nakamura, Akira; Maegawa, Tomohiro published the artcile< Aromatic Halogenation Using N-Halosuccinimide and PhSSiMe3 or PhSSPh>, Synthetic Route of 128-09-6, the main research area is arene aromatic halogenation halosuccinimide; haloarene preparation aromatic halogenation halosuccinimide.

We developed a mild aromatic halogenation reaction using a combination of N-halosuccinimide and PhSSiMe3 or PhSSPh. Less reactive aromatic compounds, such as Me 4-methoxybenzoate, were brominated with PhSSiMe3 or PhSSPh and N-bromosuccinimide in high yields. No reaction was observed in the absence of PhSSiMe3 or PhSSPh. This method is also applicable to chlorination reactions using N-chlorosuccinimide and PhSSPh.

Journal of Organic Chemistry published new progress about Anisoles Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Synthetic Route of 128-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chang, Chun-Wei; Wu, Chia-Hui; Lin, Mei-Huei; Liao, Pin-Hsuan; Chang, Chun-Chi; Chuang, Hsiao-Han; Lin, Su-Ching; Lam, Sarah; Verma, Ved Prakash; Hsu, Chao-Ping; Wang, Cheng-Chung published the artcile< Establishment of Guidelines for the Control of Glycosylation Reactions and Intermediates by Quantitative Assessment of Reactivity>, SDS of cas: 128-09-6, the main research area is predicted stereocontrolled glycosylation relative reactivity thioglycoside; carbohydrates; diastereoselectivity; glycosylation.

Stereocontrolled chem. glycosylation remains a major challenge despite vast efforts reported over many decades and so far still mainly relies on trial and error. Now it is shown that the relative reactivity value (RRV) of thioglycosides is an indicator for revealing stereoselectivities according to four types of acceptors. Mechanistic studies show that the reaction is dominated by two distinct intermediates: glycosyl triflates and glycosyl halides from N-halosuccinimide (NXS)/TfOH. The formation of glycosyl halide is highly correlated with the production of α-glycoside. These findings enable glycosylation reactions to be foreseen by using RRVs as an α/β-selectivity indicator and guidelines and rules to be developed for stereocontrolled glycosylation.

Angewandte Chemie, International Edition published new progress about Diastereoselective synthesis. 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, SDS of cas: 128-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics