342803-45-6

Upstream product

• 18162-48-6 tert-butyldimethylsilyl chloride 
• 67226-77-1 tert-butyldimethylsilyl 3-[(tertbutyldimethylsilyl)oxy]benzoate 
• 99-06-9 3-Carboxyphenol 
• 160907-95-9 3-((tert-butyldimethylsilyl)oxy)benzoic acid 

Downstream Products

• 898909-49-4 bis[methylenoxy 3-tert-butyldimethylsilyloxybenzoate] 
• 1351067-35-0 3-[(tert-butyldimethylsilyl)oxy]-N-(quinolin-8-yl)benzamide 
• 1351066-94-8 5-(tert-butyldimethylsilyloxy)-N-(8-quinolinyl)-2-((triisopropylsilyl)ethynyl)benzamide 
• 1428858-79-0 2-butyl-5-((tert-butyldimethylsilyl)oxy)-N-(quinolin-8-yl)benzamide 

Relevant academic research and scientific papers

Cell sugar transport channel inhibitor

The invention discloses a cell sugar transport channel inhibitor of which the structure is shown as a formula (I). The cell sugar transport channel inhibitor disclosed by the invention can target a cell sugar transport channel, and inhibit tumor cell prol

Formamide catalyzed activation of carboxylic acids-versatile and cost-efficient amidation and esterification

A novel, broadly applicable method for amide C-N and ester C-O bond formation is presented based on formylpyrrolidine (FPyr) as a Lewis base catalyst. Herein, trichlorotriazine (TCT), which is the most cost-efficient reagent for OH-group activation, was employed in amounts of ≤40 mol% with respect to the starting material (100 mol%). The new approach is distinguished by excellent cost-efficiency, waste-balance (E-factor down to 3) and scalability (up to >80 g). Moreover, high levels of functional group compatibility, which includes acid-labile acetals and silyl ethers, are demonstrated and even peptide C-N bonds can be formed. In comparison to reported amidation procedures using TCT, yields are considerably improved (for instance from 26 to 91%) and esterification is facilitated for the first time in synthetically useful yields. These significant enhancements are rationalized by activation by means of acid chlorides instead of less electrophilic acid anhydride intermediates.

C?O Activation by a Rhodium Bis(N-Heterocyclic Carbene) Catalyst: Aryl Carbamates as Arylating Reagents in Directed C?H Arylation

Despite recent progress in the catalytic transformation of inert phenol derivatives as alternatives to aryl halides and triflates, attempts at the cross-coupling of inert phenol derivatives with the C?H bonds of arenes have met with limited success. Herein, we report the rhodium-catalyzed cross-coupling of aryl carbamates with arenes bearing a convertible directing group. The key to success is the use of an in situ generated rhodium bis(N-heterocyclic carbene) species as the catalyst, which can promote activation of the inert C(sp2)?O bond in aryl carbamates.

Chelation-Assisted Nickel-Catalyzed Oxidative Annulation via Double C-H Activation/Alkyne Insertion Reaction

A nickel/NHC system for regioselective oxidative annulation by double C-H bond activation and concomitant alkyne insertion is described. The catalytic reaction requires a bidentate directing group, such as an 8-aminoquinoline, embedded in the substrate. Various 5,6,7,8-tetrasubstituted-N-(quinolin-8-yl)-1-naphthamides can be prepared as well as phenanthrene and benzo[h]quinoline amide derivatives. Diarylalkynes, dialkylalkynes, and arylalkylalkynes can be used in the system. A Ni0/NiII catalytic cycle is proposed as the main catalytic cycle. The alkyne plays a double role as a two-component coupling partner and as a hydrogen acceptor. In two shakes: Oxidative annulation by a double C-H activation/alkyne insertion reaction was achieved by a nickel/NHC system. A Ni0/NiII catalytic cycle is proposed as the main catalytic cycle. The alkyne plays a double role as a two-component coupling partner and as a hydrogen acceptor.

Nickel-catalyzed direct alkylation of C-H bonds in benzamides and acrylamides with functionalized alkyl halides via bidentate-chelation assistance

The alkylation of the ortho C-H bonds in benzamides and acrylamides containing an 8-aminoquinoline moiety as a bidentate directing group with unactivated alkyl halides using nickel complexes as catalysts is described. The reaction shows high functional group compatibility. In reactions of meta-substituted aromatic amides, the reaction proceeds in a highly selective manner at the less hindered C-H bond.

Palladium-catalyzed direct ortho -alkynylation of aromatic carboxylic acid derivatives

The palladium-catalyzed direct alkynylation of C-H bonds in aromatic carboxylic acid derivatives is described. The use of 8-aminoquinoline as a directing group facilitates the alkynylation of an electronically diverse range of C(sp2)-H bonds.

Ultra-Sensitive Chemiluminescent Substrates for Enzymes and Their Conjugates

New chemiluminescent compounds, stable in aqueous buffers, for use in biological assaying include acridanebased compounds and (1,2)-dioxetanes. Among the new acridanebased compounds are water-soluble acridanes, enhancer coupled acridanes, bis and trisacri