Tag: M.W=200-250

Seth, Kapileswar published the artcileCooperative Catalysis by Palladium-Nickel Binary Nanocluster for Suzuki-Miyaura Reaction of Ortho-Heterocycle-Tethered Sterically Hindered Aryl Bromides, Synthetic Route of 480438-56-0, the main research area is Suzuki Miyaura coupling sterically hindered aryl bromide boronic acid; palladium nickel binary nanocluster catalyst Suzuki Miyaura coupling.

The palladium-nickel binary nanocluster is reported as a new catalyst system for Suzuki-Miyaura cross-coupling of ortho-heterocycle-tethered sterically hindered aryl bromides. The inferior results obtained with the reported Pd/Ni salts/complexes or individual Pd/Ni nanoparticles as catalyst reveal the cooperative catalytic effect of the Pd and Ni nanoparticles in the Pd-Ni nanocluster. The broad substrate scope with respect to variation of the 2-arylbenzoxazole moiety and boronic acids, which offers a means for diversity generation and catalyst recyclability, marks a distinct advantage. E.g., in presence of palladium-nickel binary nanoclusters in DMF, Suzuki-Miyaura cross-coupling of PhB(OH)2 with sterically hindered aryl bromide (I) gave 80% II.

Organic Letters published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 480438-56-0 belongs to class chlorides-buliding-blocks, name is 3-Chloro-4-isopropoxyphenylboronic acid, and the molecular formula is C9H12BClO3, Synthetic Route of 480438-56-0.

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

Parle, Amrita published the artcileSynthesis, characterization and evaluation of 3-acetylindole derivatives as potential antifungal agents, Application In Synthesis of 93118-03-7, the main research area is acetylindole preparation antifungal activity.

In the present study, a series of novel 3-acetylindole derivatives I (R = 3,5-dibromophenyl, 2-chloro-5-nitrophenyl, 2-(trifluoromethoxy)phenyl, etc.) was synthesized by reacting 3-acetylindole and benzaldehydes RCHO. The synthesized 3-acetylindole derivatives I were characterized physicochem., by elemental anal. and spectral (IR and 1H-NMR) anal. The synthesized compounds I were screened for their in-vitro antifungal activity against Candida albicans, Rhizopus oligosporus, Gibberella fuzikuroi and Asperigillus niger by cup plate method. The results revealed that five compounds namely I (R = 5-hydroxy-2-nitrophenyl, 2-chloro-3-(trifluoromethyl)phenyl, 4-nitrophenyl, 4-methoxy-3-nitrophenyl and 5-chloro-2-nitrophenyl) have better or equal antifungal activity compared to the standard fluconazole.

Pharma Innovation published new progress about Benzaldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 93118-03-7 belongs to class chlorides-buliding-blocks, name is 2-Chloro-3-(trifluoromethyl)benzaldehyde, and the molecular formula is C8H4ClF3O, Application In Synthesis of 93118-03-7.

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

Gottumukkala, Aditya L. published the artcileEfficient Formation of Benzylic Quaternary Centers via Palladium Catalysis, Synthetic Route of 480438-56-0, the main research area is palladium catalyst conjugate addition arylboronic acid enone; CC coupling reactions; arylations; enones; ligands; palladium.

Pd(O2CCF3)2 and 2,2-bipyridine catalyzed the formation of benzylic quaternary centers from arylboronic acids and β-disubstituted enones. For cyclic substrates, only 1 mol% of palladium is required for full conversion, and a variety of arylboronic acids could be reacted with yields exceeding 90%. 5-Membered cyclic enones were found to be most reactive, followed by 6-membered rings and then 7-membered rings. E.g., reaction of 3-methyl-2-cyclohexenone and PhB(OH)2 gave 92% I. In the case of acyclic substrates, e.g. (E)-Me3COCH2CMe:CHCOMe, 5 mol% Pd was found to be necessary, along with the addition of 20 mol% KSbF6 to afford the highest conversion.

ChemSusChem published new progress about Boronic acids Role: RCT (Reactant), RACT (Reactant or Reagent). 480438-56-0 belongs to class chlorides-buliding-blocks, name is 3-Chloro-4-isopropoxyphenylboronic acid, and the molecular formula is C9H12BClO3, Synthetic Route of 480438-56-0.

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

Fujiwara, Yuta published the artcilePractical C-H Functionalization of Quinones with Boronic Acids, Formula: C9H12BClO3, the main research area is alkyl aryl quinone preparation natural product; quinone boronic acid coupling silver nitrate catalyst.

A direct functionalization of a variety of quinones with several boronic acids has been developed. This scalable reaction proceeds readily at room temperature in an open flask using catalytic silver(I) nitrate in the presence of a persulfate co-oxidant. The scope with respect to quinones is broad, with a variety of alkyl- and arylboronic acids undergoing efficient cross-coupling. The mechanism is presumed to proceed through a nucleophilic radical addition to the quinone with in situ reoxidation of the resulting dihydroquinone. This method has been applied to complex substrates, including a steroid derivative and a farnesyl natural product.

Journal of the American Chemical Society published new progress about Boronic acids Role: RCT (Reactant), RACT (Reactant or Reagent). 480438-56-0 belongs to class chlorides-buliding-blocks, name is 3-Chloro-4-isopropoxyphenylboronic acid, and the molecular formula is C9H12BClO3, Formula: C9H12BClO3.

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

Yap, Connor published the artcileEnantioselective Nickel-Catalyzed Intramolecular Allylic Alkenylations Enabled by Reversible Alkenylnickel E/Z Isomerization, Product Details of C9H12BClO3, the main research area is alkynylallylic phosphate arylboronic acid nickel enantioselective allylic alkenylation isomerization; allylic substitution; asymmetric catalysis; cyclization; isomerization; nickel.

Enantioselective nickel-catalyzed arylative cyclizations of substrates containing a Z-allylic phosphate tethered to an alkyne are described. These reactions give multisubstituted chiral aza- and carbocycles, and are initiated by the addition of an arylboronic acid to the alkyne, followed by cyclization of the resulting alkenylnickel species onto the allylic phosphate. The reversible E/Z isomerization of the alkenylnickel species is essential for the success of the reactions.

Angewandte Chemie, International Edition published new progress about Alkenylation catalysts (stereoselective, intramol., allylic). 480438-56-0 belongs to class chlorides-buliding-blocks, name is 3-Chloro-4-isopropoxyphenylboronic acid, and the molecular formula is C9H12BClO3, Product Details of C9H12BClO3.

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

Saha, Debasmita published the artcileA sequential synthetic strategy towards unexplored dibenzo[b,f][1,4]thiazepine carboxamides: copper catalyzed C-S cyclization followed by Ugi type 3CC cascade, Category: chlorides-buliding-blocks, the main research area is carboxamide dibenzothiazepine preparation; dibenzothiazepine preparation isocyanide carboxylic acid Ugi reaction; aminothiophenol halo benzaldehyde copper catalyst cyclization.

A two-step diversity oriented synthetic protocol to a novel class of dihydrodibenzo[b,f][1,4]thiazepine-11-carboxamides was developed. The first step ensured the synthesis of dibenzothiazepine via copper-mediated condition followed by Ugi-Joullie reaction of the resultant cyclic imine in the second step.

RSC Advances published new progress about Amides Role: SPN (Synthetic Preparation), PREP (Preparation). 93118-03-7 belongs to class chlorides-buliding-blocks, name is 2-Chloro-3-(trifluoromethyl)benzaldehyde, and the molecular formula is C8H4ClF3O, Category: chlorides-buliding-blocks.

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

Bernardo, Paul H. published the artcileSynthesis of a rhodanine-based compound library targeting Bcl-XL and Mcl-1, Computed Properties of 480438-56-0, the main research area is mol docking anticancer agent rhodanine pyridine amino acid preparation.

Symposium report presented at the 18th International Conference on Organic Synthesis (ICOS) Bergen, Norway 1-6 August, 2010. A small library of pyridine-based rhodanine analogs of BH-3I-1 [i.e., 5-[(4-bromophenyl)methylene]-α-(1-methylethyl)-4-oxo-2-thioxo-3-thiazolidineacetic acid] was designed, the synthesis of the target compound was achieved using amino acids as starting materials and the products thus obtained were screened against B-cell lymphoma (extra large, Bcl-XL, antiapoptotic protein, inhibitor of apoptosis proteins) and myeloid cell leukemia sequence 1 (Mcl-1) for the ability to displace 5-(carboxy)fluorescein-labeled Bak peptide (Flu-Bak). Differences in selectivity toward Bcl-XL and Mcl-1 were observed and the binding modes of selected compounds were studied further. The results may be useful in designing potent small-mol. inhibitors of Bcl-XL and Mcl-1 as well as selective Mcl-1 inhibitors.

Pure and Applied Chemistry published new progress about Amino acids Role: RCT (Reactant), RACT (Reactant or Reagent). 480438-56-0 belongs to class chlorides-buliding-blocks, name is 3-Chloro-4-isopropoxyphenylboronic acid, and the molecular formula is C9H12BClO3, Computed Properties of 480438-56-0.

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

Du, Yingying published the artcileHighly efficient heterogeneous copper-catalysed O-arylation of phenols by nitroarenes leading to diaryl ethers, SDS of cas: 61343-99-5, the main research area is diaryl ether green preparation; phenol nitroarene arylation copper catalyst.

The heterogeneous O-arylation of phenols by nitroarenes was achieved in DMF at 100° by using an MCM-41-immobilized bidentate nitrogen copper(II) complex [MCM-41-2N-Cu(OAc)2] as catalyst, yielding a variety of unsym. diaryl ethers I (R1 = 4-OH, 2-OH, 4-NC, etc.; R2 = H, 4-Me, 4-MeO, etc.) in good to excellent yields. This heterogeneous copper catalyst can be easily prepared by a simple procedure from com. readily available and inexpensive reagents, recovered by filtration of the reaction solution and recycled at least seven times without significant loss of activity.

Journal of Chemical Research published new progress about Aromatic ethers Role: SPN (Synthetic Preparation), PREP (Preparation). 61343-99-5 belongs to class chlorides-buliding-blocks, name is 4-(4-Chlorophenoxy)benzaldehyde, and the molecular formula is C13H9ClO2, SDS of cas: 61343-99-5.

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

Zheng, Xing-Wang published the artcileThe Coupling of Arylboronic Acids with Nitroarenes Catalyzed by Rhodium, Computed Properties of 61343-99-5, the main research area is diarylether preparation; arylboronic acid nitroarene coupling rhodium catalyst.

The coupling of arylboronic acids with electron-deficient nitroarenes was realized for the first time by using a rhodium(I) catalyst under an air atm., achieving unsym. diaryl ethers, e.g., I with yields ranging from poor to good. From a deuterium labeling experiment, the oxygen atom is derived from ambient water. The efficiency of this reaction was demonstrated by its compatibility with fluoro, bromo, chloro, and trifluoromethyl groups.

Organic Letters published new progress about Aromatic ethers Role: SPN (Synthetic Preparation), PREP (Preparation). 61343-99-5 belongs to class chlorides-buliding-blocks, name is 4-(4-Chlorophenoxy)benzaldehyde, and the molecular formula is C13H9ClO2, Computed Properties of 61343-99-5.

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

Zhang, Jilei published the artcileLigand-free copper-catalyzed coupling of nitroarenes with arylboronic acids, Name: 4-(4-Chlorophenoxy)benzaldehyde, the main research area is ligand free copper catalyzed coupling nitro arene arylboronic acid.

The first example of copper-catalyzed coupling of nitro arenes with arylboronic acids was developed, providing diaryl ethers in moderate to excellent yields. The efficiency of this reaction was demonstrated by compatibility with a wide range of groups. Moreover, the rigorous exclusion of air/moisture is not required in these transformations. Thus, the method represents a simple and facile procedure to access diaryl ethers. Preliminary mechanistic experiments using deuterium labeling showed that the oxygen atom was derived from water.

Green Chemistry published new progress about Aromatic ethers Role: SPN (Synthetic Preparation), PREP (Preparation). 61343-99-5 belongs to class chlorides-buliding-blocks, name is 4-(4-Chlorophenoxy)benzaldehyde, and the molecular formula is C13H9ClO2, Name: 4-(4-Chlorophenoxy)benzaldehyde.

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