Chlorides-buliding-blocks

Bissot, T. C. published the artcileThe reaction of O-methylhydroxylamine and its N-methyl derivatives with diborane, Product Details of C5H10Cl3O3P, the publication is Journal of the American Chemical Society (1958), 1868-74, database is CAplus.

B₂H₆ (I) reacted with MeONH₂ (II) in Et₂O at -112° to form MeONH₂BH₃ (III), m. 55°. Hydrolysis of III with dilute HCl gave 93% of the original II, and all 3 of the hydridic H was recovered; hydrolysis with 50% KOH at 100° gave reduction of II to NH₃ and only 2/3 of the hydridic H was recovered. No reduction was observed when pure II was heated with 50% KOH. I reacted with MeONHMe (IV), with or without Et₂O, to give MeONHMeBH₃ (V), m. -23 to -21°. I reacted with NMe₃ at 0° to give an 86% yield Me₃NBH₃ (VI). Acid hydrolysis of V gave H₃BO₃ and the salt of IV; basic hydrolysis gave 27% MeNH₂ and other amines. Pure IV was unaffected by 50% KOH at 100°. Only 2/3 of the hydridic H of V was obtained by hydrolysis. I and MeONMe₂ (VII) gave MeONMe₂BH₃ (VIII), m. -16.5 to -16.0°, vapor pressure 3.8 mm. at 25°. VIII and NMe₃ reacted to regenerate 98% of the original VII. Basic hydrolysis of VIII gave 92% of the original VII and 90% of the hydridic H. III, V, VIII lost H on standing; 50% decomposition in 24 hrs. required temperatures of 55, 65, and 90°, resp. Reaction of III with BF₃ in Et₂O at 0° did not produce I and H evolution increased. Reaction of III with NMe₃ gave 22% VI; H loss was again increased. NH₃ had a similar effect. The pyrolysis of III, V, and VIII is discussed, and mechanisms for H loss and amine reduction during basis hydrolysis are suggested. When I reacted with II containing NH₃ in Et₂O, the etherate of H₂NB₂H₅ (IX) was obtained. Pure IX was obtained by complexing the Et₂O with AlCl₃ or BF₃.

Journal of the American Chemical Society published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Product Details of C5H10Cl3O3P.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Williams, A. C. published the artcileProduct class 4: benzopyranones and benzopyranthiones, Name: Coumarin-6-sulfonyl chloride, the publication is Science of Synthesis (2003), 347-638, database is CAplus.

A review. Methods for preparing 2H-1-benzopyran-2-ones, 4H-1-benzopyran-4-ones, 1H-2-benzopyran-1-ones, 6H-dibenzo[b,d]pyran-6-ones, 9H-xanthenones and their corresponding thione analogs as well as 3H-2-benzopyran-3-ones are surveyed. Synthetic methods include ring closure, ring transformation, aromatization and substituent modification reactions.

Science of Synthesis published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C5H5ClO2, Name: Coumarin-6-sulfonyl chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Wang, Lin published the artcileImpact of peroxisome proliferator-activated receptor-α on diabetic cardiomyopathy, Synthetic Route of 637-07-0, the publication is Cardiovascular Diabetology (2021), 20(1), 2, database is CAplus and MEDLINE.

A review. The prevalence of cardiomyopathy is higher in diabetic patients than those without diabetes. Diabetic cardiomyopathy (DCM) is defined as a clin. condition of abnormal myocardial structure and performance in diabetic patients without other cardiac risk factors, such as coronary artery disease, hypertension, and significant valvular disease. Multiple mol. events contribute to the development of DCM, which include the alterations in energy metabolism (fatty acid, glucose, ketone and branched chain amino acids) and the abnormalities of subcellular components in the heart, such as impaired insulin signaling, increased oxidative stress, calcium mishandling and inflammation. There are no specific drugs in treating DCM despite of decades of basic and clin. investigations. This is, in part, due to the lack of our understanding as to how heart failure initiates and develops, especially in diabetic patients without an underlying ischemic cause. Some of the traditional anti-diabetic or lipid-lowering agents aimed at shifting the balance of cardiac metabolism from utilizing fat to glucose have been shown inadequately targeting multiple aspects of the conditions. Peroxisome proliferator-activated receptor α (PPARα), a transcription factor, plays an important role in mediating DCM-related mol. events. Pharmacol. targeting of PPARα activation has been demonstrated to be one of the important strategies for patients with diabetes, metabolic syndrome, and atherosclerotic cardiovascular diseases. The aim of this review is to provide a contemporary view of PPARα in association with the underlying pathophysiol. changes in DCM. We discuss the PPARα-related drugs in clin. applications and facts related to the drugs that may be considered as risky (such as fenofibrate, bezafibrate, clofibrate) or safe (pemafibrate, metformin and glucagon-like peptide 1-receptor agonists) or having the potential (sodium-glucose co-transporter 2 inhibitor) in treating DCM.

Cardiovascular Diabetology published new progress about 637-07-0. 637-07-0 belongs to chlorides-buliding-blocks, auxiliary class Inhibitor,Cell Cycle,PPAR, name is Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, and the molecular formula is C11H19BO2S, Synthetic Route of 637-07-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Burn, A. J. published the artcileThe reactivity of organophosphorus compounds. XVII. A novel oxidation of some tervalent compounds: reduction of carbon tetrachloride to chloroform by trialkyl phosphites, Category: chlorides-buliding-blocks, the publication is Journal of the Chemical Society (1963), 5788-96, database is CAplus.

cf. CA 58, 13780a. (RO)₃P react with R’OH in the presence of CCl₄ or BrCCl₃ to give the corresponding trialkyl phosphate, CHCl₃, and an alkyl halide (when R = R’). Small quantities of the dialkyl trichloromethylphosphonate are also formed under some conditions. Variation of the phosphite and alc. (R ≠ R’) leads to mixtures of phosphates, but when R’ = tert-Bu, oxidation to (RO)₃PO occurs. The results are discussed in terms of solvolysis of intermediate quasiphosphonium ions of the type [(RO)₃PCCl₃]⁺. Similar reactions involving Ph₃P and (PhO)₃P with EtOH and polyhalomethanes have been investigated.

Journal of the Chemical Society published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Burn, A. J. published the artcileA new oxidation of trialkyl phosphites, Safety of Diethyltrichloromethylphosphonate, the publication is Chemistry & Industry (London, United Kingdom) (1963), 736-7, database is CAplus.

cf. CA 56, 3508h. Reactions of (RO)₃P and R’OH(R = Et, Bu, and allyl, and R’ = Et, Bu, tert-Bu, and allyl) with CCl₄ or BrCCl₃ to yield (RO)₃PO and phosphorylation products of the alcs. are summarized. By suitable choice of phosphite and alc., the reaction provides a useful method of oxidation of phosphites or phosphorylation of alcs. The reaction proceeds by a radical-chain process involving solvolysis of an intermediate quasiphosphonium derivative, [(RO)₃PCCl₃]⁺Cl^–.

Chemistry & Industry (London, United Kingdom) published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Safety of Diethyltrichloromethylphosphonate.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Bunyan, P. J. published the artcileReactivity of organophosphorus compounds. XIII. Radical-chain transfer reactions of triethyl phosphite: a new phosphorothiolate synthesis, Product Details of C5H10Cl3O3P, the publication is Journal of the Chemical Society (1962), 2953-8, database is CAplus.

cf. CA 57, 4577c. Reinvestigation of the reaction between BrCCl₃ and tri-Et phosphite has revealed the formation of CCl₄ as a main product; reaction in the presence of BuSH gave S-Bu di-Et phosphorothioate in excellent yield. These and related reactions are discussed in terms of a radical-chain mechanism.

Journal of the Chemical Society published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Product Details of C5H10Cl3O3P.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Leyva-Perez, Antonio published the artcileBifunctional solid catalysts for chemoselective hydrogenation-cyclisation-amination cascade reactions of relevance for the synthesis of pharmaceuticals, COA of Formula: C13H9ClN2O4, the publication is Tetrahedron (2010), 66(41), 8203-8209, database is CAplus.

The benzodiazepines olanzapine (I) and clozapine (II) are nowadays manufactured by a three-step process with a final yield below 50%. An approach to environmentally-friendly intensive processes consists in the development of multifunctional solid catalyst able to catalyze multistep reactions. Here, a bifunctional metal-acid solid catalyst has been prepared and is able to carry out hydrogenation-cyclization-amination reactions in a cascade process. The catalytic system is illustrated for the synthesis of these important antipsychotics, being an alternative for the current industrial process that requires three steps batch reactions, using mineral acids and bases, and stoichiometric amounts of SnCl₂.

Tetrahedron published new progress about 60091-87-4. 60091-87-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitro Compound,Carboxylic acid,Amine,Benzene, name is 2-((4-Chloro-2-nitrophenyl)amino)benzoic acid, and the molecular formula is C13H9ClN2O4, COA of Formula: C13H9ClN2O4.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Shames, Spencer L. published the artcileAcyl substituent effects on rates of acyl transfer to thiolate, hydroxide, and oxy dianions, Product Details of C5H10Cl3O3P, the publication is Journal of the American Chemical Society (1981), 103(20), 6170-7, database is CAplus.

The rates of transfer of polar aliphatic acyl groups (with σ^* -0.3 to +1.05) from aqueous p-nitrophenol to OH^–, the thiol anion of N-acetyl-L-cysteine, or phosphonate dianions are determined The rate constants for the saponification of ten p-O₂NC₆H₄O₂CR (I; R = alkyl) aretreated via an LFER with ρ^* 2.9. The ρ^* value for the thiolysis reaction is only slightly larger (16 ± 13%) than that for saponification These kinetic ρ^* values are essentially identical with the equilibrium ρ^* for OH^– or thiolate addition to aldehydes. To the extent that gem diolate and thiohemiacetalate formation are appropriate model reactions for the formation of the anionic tetrahedral intermediates in the corresponding acyl transfer reactions, the magnitude of the kinetic ρ^* values suggests that the transition states for the saponification and for the thiolysis reactions are similar, in geometry and charge distribution, to the tetrahedral intermediates. Acyl transfer from p-nitrophenol to phosphonate dianions involves an uncatalyzed nucleophilic displacement by the oxy dianion. The ρ^* for the reaction of ClCH₂PO₃^2- with I is 2.4. The second-order rate constants for the reactions between the phosphonates and I (R = Me, ClCH₂) and p-O₂NC₆H₄OAc show a small sensitivity to the basicity of the nucleophile (β_nuc ∼0.3). An explanation of the magnitudes of the ρ^* and β_nuc values, and of the anomalously low reaction rates (relative to oxy monoanions and amines of comparable basicities) for acyl transfer to the phosphates, is that electrostatic interactions and desolvation of the oxy dianion make substantial contributions to the activation energy barrier for nucleophilic attack.

Journal of the American Chemical Society published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C42H63O3P, Product Details of C5H10Cl3O3P.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Zhai, Yan published the artcilePhotoswitchable micelles for the control of singlet-oxygen generation in photodynamic therapies, SDS of cas: 219537-97-0, the publication is Biomacromolecules (2018), 19(6), 2023-2033, database is CAplus and MEDLINE.

Inadvertent photosensitizer-activation and singlet-oxygen generation hampers clin. application of photodynamic therapies of superficial tumors or s.c. infections. Therefore, a reversible photoswitchable system was designed in micellar nanocarriers using ZnTPP as a photosensitizer and BDTE as a photoswitch. Singlet-oxygen generation upon irradiation did not occur in closed-switch micelles with ZnTPP/BDTE feeding ratios >1:10. Deliberate switch closure/opening within 65-80 min was possible through thin layers of porcine tissue in vitro, increasing for thicker layers. Inadvertent opening of the switch by simulated daylight, took several tens of hours. Creating deliberate cell damage and prevention of inadvertent damage in vitro and in mice could be done at lower ZnTPP/BDTE feeding ratios (1:5) in open-switch micelles and at higher irradiation intensities than inferred from chem. clues to generate singlet-oxygen. The reduction of inadvertent photosensitizer activation in micellar nanocarriers, while maintaining the ability to kill tumor cells and infectious bacteria established here, brings photodynamic therapies closer to clin. application.

Biomacromolecules published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C18H20N2O12, SDS of cas: 219537-97-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Flynn, Richard M. published the artcileSynthetic and mechanistic aspects of halo-F-methylphosphonates, Application of Diethyltrichloromethylphosphonate, the publication is Journal of Fluorine Chemistry (2011), 132(10), 815-828, database is CAplus.

The synthesis of a variety of new halo-F-methylphosphonates has been achieved by a Michaelis-Arbuzov type reaction between a halo-F-methane and a trialkyl phosphite. This synthesis has proved to be of wide scope and utility for the high yield preparation of a number of heretofore unknown compounds The ¹H, ¹⁹F, ¹³C and ³¹P NMR spectroscopic properties are reported in detail. The mechanism for the formation of bromodifluoromethylphosphonates has been shown to proceed through the intermediacy of difluorocarbene :CF₂. The phosphonate products have been shown to react with a wide variety of reagents. Fluoride and alkoxide ions react by attack at phosphorus with cleavage of the carbon-phosphorus bond and formation of [:CF₂] from the bromodifluoromethylphosphonates and the CFBr₂ ^– anion from the dibromofluoromethylphosphonates. Iodide ion and tertiary phosphines react by attack at the ester carbon to give stable phosphonate salts. Hydrolysis of the phosphonate esters with 50% aqueous HCl gives the expected phosphonic acids. Trimethylsilyl bromide attacks phosphoryl oxygen to afford the bis(trimethylsilyl) esters.

Journal of Fluorine Chemistry published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Application of Diethyltrichloromethylphosphonate.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics