Day: October 13, 2022

The author of 《Manganese catalyzed α-methylation of ketones with methanol as a C1 source》 were Bruneau-Voisine, Antoine; Pallova, Lenka; Bastin, Stephanie; Cesar, Vincent; Sortais, Jean-Baptiste. And the article was published in Chemical Communications (Cambridge, United Kingdom) in 2019. HPLC of Formula: 88-15-3 The author mentioned the following in the article:

The direct α-methylation of ketones with methanol under hydrogen borrowing conditions using a well-defined manganese PN3P complex as a pre-catalyst was, for the first time, achieved. The reactions typically proceed at 120 °C for 20 h with 3 mol% pre-catalyst loading and in the presence of NaOtBu (50 mol%) as base. The scope of the reaction was extended to the α-methylation of esters. The results came from multiple reactions, including the reaction of 1-Thiophen-2-yl-ethanone(cas: 88-15-3HPLC of Formula: 88-15-3)

1-Thiophen-2-yl-ethanone(cas: 88-15-3) belongs to thiophenes. Reflecting their high stabilities, thiophenes arise from many reactions involving sulfur sources and hydrocarbons, especially unsaturated ones. Thiophenes are classically prepared by the reaction of 1,4-diketones, diesters, or dicarboxylates with sulfidizing reagents such as P4S10 such as in the Paal-Knorr thiophene synthesis. HPLC of Formula: 88-15-3

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

In 2019,Acta Crystallographica, Section E: Crystallographic Communications included an article by Majoumo-Mbe, Felicite; Nfor, Emmanuel Ngwang; Tsobnang, Patrice Kenfack; Eloundou, Valoise Brenda Nguepmeni; Yong, Joseph Ngwain; Iris Efeti, Ikome Ngwain. Synthetic Route of C6H6OS. The article was titled 《Synthesis, molecular and crystal structure of 1-(1,2-dihydrophthalazin-1-ylidene)-2-[1-(thiophen-2-yl)ethylidene]hydrazine》. The information in the text is summarized as follows:

The title compound, C14H12N4S, was synthesized by the condensation reaction of hydralazine and 2-acetylthiophene and during the reaction, a proton transfer from the imino nitrogen atom to one of the endocylic nitrogen atoms occurred. The compound crystallizes in the monoclinic crystal system with two independent mols. (mols. 1 and 2) in the asym. unit. In each mol., there is a slight difference in the orientation of the thiophene ring with respect to phthalazine ring system, mol. 1 showing a dihedral angle of 42.51 (1)° compared to 8.48 (1)° in mol. 2. This implies an r.m.s deviation of 0.428 (1) Å between the two mols. for the 19 non-H atoms. The two independent mols. are connected via two N-H···N hydrogen bonds, forming dimers which interact by two bifurcated π-π stacking interactions to build tetrameric motifs. The latter are packed in the ac plane via weak C-H···π interactions and along the b axis via C-H ···N and C-H···π interactions. This results a three-dimensional architecture with a tilted herringbone packing mode. The experimental process involved the reaction of 1-Thiophen-2-yl-ethanone(cas: 88-15-3Synthetic Route of C6H6OS)

1-Thiophen-2-yl-ethanone(cas: 88-15-3) belongs to thiophenes. Specialized thiophenes can be synthesized similarly using Lawesson’s reagent as the sulfidizing agent, or via the Gewald reaction, which involves the condensation of two esters in the presence of elemental sulfur. Another method is the Volhard–Erdmann cyclization. Synthetic Route of C6H6OS

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

《Two isostructural 3-(5-aryloxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-1-(thiophen-2-yl)prop-2-en-1-ones: disorder and supramolecular assembly》 was written by Shaibah, Mohammed A. E.; Yathirajan, Hemmige S.; Manju, Nagaraj; Kalluraya, Balakrishna; Rathore, Ravindranath S.; Glidewell, Christopher. Application of 88-15-3 And the article was included in Acta Crystallographica, Section E: Crystallographic Communications in 2020. The article conveys some information:

Two new chalcones containing both pyrazole and thiophene substituents have been prepared and structurally characterized. 3-(3-Methyl-5-phenoxy-1-phenyl-1H-pyrazol-4-yl)-1-(thiophen-2-yl)prop-2-en-1-one, C23H18N2O2S (I), and 3-[3-methyl-5-(2-methylphenoxy)-1-phenyl-1H-pyrazol-4-yl]-1-(thiophen-2-yl)prop-2-en-1-one, C24H20N2O2S (II), are isomorphous as well as isostructural, and in each the thiophene substituent is disordered over two sets of at. sites having occupancies 0.844 (3) and 0.156 (3) in (I), and 0.883 (2) and 0.117 (2) in (II). In each structure, the mols. are linked into sheets by a combination of C-H···N and C-H···O hydrogen bonds. Comparisons are made with some related compounds In the experiment, the researchers used 1-Thiophen-2-yl-ethanone(cas: 88-15-3Application of 88-15-3)

1-Thiophen-2-yl-ethanone(cas: 88-15-3) belongs to thiophenes. Specialized thiophenes can be synthesized similarly using Lawesson’s reagent as the sulfidizing agent, or via the Gewald reaction, which involves the condensation of two esters in the presence of elemental sulfur. Another method is the Volhard–Erdmann cyclization. Application of 88-15-3

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

The author of 《Photobleaching dynamics in small molecule vs. polymer organic photovoltaic blends with 1,7-bis-trifluoromethylfullerene》 were Garner, Logan E.; Nellissery Viswanathan, Vinila; Arias, Dylan H.; Brook, Colin P.; Christensen, Steven T.; Ferguson, Andrew J.; Kopidakis, Nikos; Larson, Bryon W.; Owczarczyk, Zbyslaw R.; Pfeilsticker, Jason R.; Ramamurthy, Praveen C.; Strauss, Steven H.; Boltalina, Olga V.; Braunecker, Wade A.. And the article was published in Journal of Materials Chemistry A: Materials for Energy and Sustainability in 2018. Computed Properties of C7H8O2S The author mentioned the following in the article:

Two organic photovoltaic (OPV) donor materials (one polymer and one small mol.) are synthesized from the same constituent building blocks, namely thiophene units, cyclopentathiophene dione (CTD), and cyclopentadithiophene (CPDT). Photobleaching dynamics of these donor materials are then studied under white light illumination in air with blends of PC70BM and the bis-trifluoromethylfullerene 1,7-C60(CF3)2. For both the polymer and small mol. blends, C60(CF3)2 stabilizes the initial rate of photobleaching by a factor of 15 relative to PC70BM. However, once the small mol.:C60(CF3)2 blend bleaches to ∼80% of its initial optical d., the rate of photobleaching dramatically accelerates, which is not observed in the analogous polymer blend. We probe that phenomenon using time-resolved photoluminescence (TRPL) to measure PL quenching efficiencies at defined intervals during the photobleaching experiments The data indicates the small mol. donor and C60(CF3)2 acceptor significantly de-mix with time, after which the blend begins to bleach at approx. the same rate as the neat donor sample. The work suggests that perfluoroalkylfullerenes have great potential to stabilize certain OPV active layers toward photodegradation, provided their morphol. is stable.2-(Thiophen-3-yl)-1,3-dioxolane(cas: 13250-82-3Computed Properties of C7H8O2S) was used in this study.

2-(Thiophen-3-yl)-1,3-dioxolane(cas: 13250-82-3) is one of dioxolane. 1,3-Dioxolane derivatives are recognized as important motifs for the construction of numerous pharmacologically active molecules as antiviral, antifungal, anti-HIV, and adrenoreceptor antagonists.Computed Properties of C7H8O2S

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem