Category: bromides-buliding-blocks

Sun, Bin; Tang, Xiaoli; Shi, Rongcheng; Yan, Zhiyang; Li, Bingqian; Tang, Chen; Jin, Can; Wu, Chunlei L.; Shen, Runpu P. published the artcile< Self-photocatalyzed Homolytic Dehalogenative Alkylation/Cyclization of Unactivated Alkenes Based on the Quinazolinone Skeleton via Energy Transfer>, SDS of cas: 20776-50-5, the main research area is alkyl quinazolinone preparation regioselective green chem energy transfer; unactivated alkene halide dehalogenative alkylation cyclization self photocatalysis.

A mild, external photocatalyst- and additive-free protocol for photo-induced alkylation/cyclization of unactivated alkenes with halides has been developed. This strategy showed excellent regioselectivity and simple operation to synthesize alkyl-substituted quinazolinones with a broad substrate scope. More importantly, chlorinated alkanes were also compatible with this transformation.

Asian Journal of Organic Chemistry published new progress about Bromoalkanes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, SDS of cas: 20776-50-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

White, Nicholas A.; Rovis, Tomislav published the artcile< Oxidatively Initiated NHC-Catalyzed Enantioselective Synthesis of 3,4-Disubstituted Cyclopentanones from Enals [Erratum to document cited in CA163:331092]>, Electric Literature of 3893-18-3, the main research area is erratum NHC catalyst oxidative enantioselective cyclization aryl enal; cyclopentanone stereoselective preparation erratum.

On page 10113, Scheme 1 contained a typog. error for intermediate IV; the corrected scheme is given.

Journal of the American Chemical Society published new progress about Enantioselective synthesis. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Electric Literature of 3893-18-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Xu, Guangqing; Li, Minghong; Wang, Shouliang; Tang, Wenjun published the artcile< Efficient synthesis of P-chiral biaryl phosphonates by stereoselective intramolecular cyclization>, Quality Control of 135999-16-5, the main research area is chiral biaryl phosphonate stereoselective preparation; palladium catalyzed intramol asym cyclization diaryl bromo arylphosphonate; crystal mol structure biaryl phosphonate.

A series of P-chiral biaryl phosphonates were efficiently synthesized from diaryl 2-bromo arylphosphonates in high yields (up to 92%) and good enantioselectivities (up to 88% ee) through a palladium-catalyzed asym. cyclization with a novel P-chiral biaryl monophosphorus ligand. The P-chiral biaryl phosphonate can be rapidly transformed to both antipodes of a P-chiral dialkyl biaryl monophosphorus structure. The method provides a convenient access to various P-chiral biaryl monophosphines.

Organic Chemistry Frontiers published new progress about Crystal structure. 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, Quality Control of 135999-16-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Chu, Yunpeng; Hu, Fang; Feng, Peng; Hui, Xin-Ping published the artcile< N-Heterocyclic carbene-catalyzed enantioselective dearomatizing annulation of benzoxazoles with enals>, Product Details of C9H7BrO, the main research area is dihydro benzooxazolopyridine carboxylate preparation enantioselective; benzoxazole enal dearomatization annulation heterocyclic carbene catalyst.

The first N-heterocyclic carbene-catalyzed enantioselective dearomatizing annulation of benzoxazoles I (R = Me, Et, i-Pr; R1 = H, Br; R2 = H, Me, F, Cl, Br; R3 = H, Me, Br, Cl, F; X = O, S) with α,β-unsaturated aldehydes R4CH=CHCH=O (R4 = ethoxycarbonyl, Ph, naphthalen-1-yl, furan-2-yl, etc.) has been achieved. The reaction was found to be compatible with a wide range of benzoxazoles I and the corresponding dearomatized fused heterocycles II were obtained in moderate to good yields and moderate to excellent enantioselectivities.

Organic Chemistry Frontiers published new progress about Benzoxazoles Role: RCT (Reactant), RACT (Reactant or Reagent). 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Product Details of C9H7BrO.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wu, Wen-Biao; Mu, Bo-Shuai; Yu, Jin-Sheng; Zhou, Jian published the artcile< Me2(CH2 = CH)SiCN: a bifunctional ethylene equivalent for Diels-Alder reaction based controllable tandem synthesis>, Electric Literature of 3893-18-3, the main research area is cyclohexenyl ketone perpn crystal structure mol; cyclohexancarbonitrile derivative perpn crystal structure mol; ylide aldehyde tandem reaction bifunctional silyl reagent.

A bifunctional silyl reagent Me2(CH2=CH)SiCN was developed as a novel ethylene equivalent for the Diels-Alder (DA) reaction. The use of this reagent enabled the controllable synthesis of value-added cyclohexenyl ketones I [R = Ph, 4-MeC6H4, 3-FC6H4, etc.; R1 = Me, Et, Ph, etc.], II [R2 = H, 7-OMe, 6-Br; X = CH2, O] or 2-acyl cyclohexancarbonitrile derivatives III [R3 = Me, cyclopropyl, iPr, Ph; R4 = Ph, 4-MeC6H4, 4-FC6H4, etc.] through a five- or six-step tandem sequence based on a Wittig/cyanosilylation/DA reaction/retro-cyanosilylation/isomerization of P-ylides and enals that involved a temporary silicon-tethered intramol. DA reaction.

Chemical Science published new progress about Crystal structure. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Electric Literature of 3893-18-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wu, Ting-Feng; Zhang, Yue-Jiao; Fu, Yue; Liu, Fang-Jie; Tang, Jian-Tao; Liu, Peng; Toste, F. Dean; Ye, Baihua published the artcile< Zirconium-redox-shuttled cross-electrophile coupling of aromatic and heteroaromatic halides>, Synthetic Route of 401-78-5, the main research area is biaryl preparation; aryl halide cross coupling zirconium redox catalyst.

Herein, a homogeneous XEC method, which relied on a zirconaaziridine complex as a shuttle for dual palladium-catalyzed processes was reported. The zirconaaziridine-mediated palladium (ZAPd)-catalyzed reaction showed excellent compatibility with various functional groups and diverse heteroaromatic scaffolds. In accord with d. functional theory (DFT) calculations, a redox transmetallation between the oxidative addition product and the zirconaaziridine was proposed as the crucial elementary step. Thus, cross-coupling selectivity using a single transition metal catalyst was controlled by the relative rate of oxidative addition of Pd(0) into the aromatic halide. Overall, the concept of a combined reducing and transmetallating agent offered opportunities for the development of transition metal reductive coupling catalysis.

Chem published new progress about Aryl halides Role: RCT (Reactant), RACT (Reactant or Reagent). 401-78-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3, Synthetic Route of 401-78-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Fioravanti, Rossella; Romanelli, Annalisa; Mautone, Nicola; Di Bello, Elisabetta; Rovere, Annarita; Corinti, Davide; Zwergel, Clemens; Valente, Sergio; Rotili, Dante; Botrugno, Oronza A.; Dessanti, Paola; Vultaggio, Stefania; Vianello, Paola; Cappa, Anna; Binda, Claudia; Mattevi, Andrea; Minucci, Saverio; Mercurio, Ciro; Varasi, Mario; Mai, Antonello published the artcile< Tranylcypromine-Based LSD1 Inhibitors: Structure-Activity Relationships, Antiproliferative Effects in Leukemia, and Gene Target Modulation>, Application In Synthesis of 20776-50-5, the main research area is tranyl cypromine derivative LSD1 inhibitor preparation cancer structure; antiproliferative activity; drug discovery; histone demethylases; lysine specific demethylase 1; structure-activity relationships.

Abstract: LSD1 is a lysine demethylase highly involved in initiation and development of cancer. To design highly effective covalent inhibitors, a strategy is to fill its large catalytic cleft by designing tranylcypromine (TCP) analogs decorated with long, hindered substituents. We prepared three series of TCP analogs, carrying aroyl- and arylacetylamino (1 a-h), Z-amino acylamino (2 a-o), or double-substituted benzamide (3 a-n) residues at the C4 or C3 position of the Ph ring. Further fragments obtained by chem. manipulation applied on the TCP scaffold (compounds 4 a-i) were also prepared When tested against LSD1, most of 1 and 3 exhibited IC50 values in the low nanomolar range, with 1 e and 3 a,d,f,g being also the most selective respect to monoamine oxidases. In MV4-11 AML and NB4 APL cells compounds 3 were the most potent, displaying up to sub-micromolar cell growth inhibition against both cell lines (3 a) or against NB4 cells (3 c). The most potent compounds in cellular assays were also able to induce the expression of LSD1 target genes, such as GFI-1b, ITGAM, and KCTD12, as functional read-out for LSD1 inhibition. Mouse and human intrinsic clearance data highlighted the high metabolic stability of compounds 3 a, 3 d and 3 g. Further studies will be performed on the new compounds 3 a and 3 c to assess their anticancer potential in different cancer contexts.

ChemMedChem published new progress about Antitumor agents. 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, Application In Synthesis of 20776-50-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary