116748-06-2

Upstream product

• 116748-05-1 4-(tert-butyldiphenylsilyloxy)benzaldehyde 
• 500110-77-0 1-(tert-Butyl-diphenyl-silanyloxy)-4-(tert-butyl-diphenyl-silanyloxymethyl)-benzene 
• 123-08-0 4-hydroxy-benzaldehyde 
• 58479-61-1 tert-butylchlorodiphenylsilane 

Downstream Products

• 500110-77-0 1-(tert-Butyl-diphenyl-silanyloxy)-4-(tert-butyl-diphenyl-silanyloxymethyl)-benzene 

Relevant academic research and scientific papers

Fluorescent probe for fluorine ion detection, application of fluorescent probe and method for detecting fluorine ions in to-be-detected sample

The invention belongs to the technical field of analytical chemistry, and particularly relates to a fluorescent probe for fluorine ion detection, application of the fluorescent probe and a method for detecting fluorine ions in a to-be-detected sample. The invention provides a compound as shown in a formula I, or an optical isomer or salt thereof, and provides application of the compound as a fluorine ion detection fluorescent probe. According to the method for detecting the fluorine ions in the to-be-detected sample, the compound, or the optical isomer or the salt of the compound is used as a fluorine ion detection fluorescent probe for detection. The fluorescent probe has the advantages of good water solubility, high selectivity, high response speed, low detection limit, good stability, wide applicable pH range and good application prospect.

Fluorescent probe for detecting fluorine ions and preparation method and application thereof

The invention relates to a fluorescent probe for detecting fluorine ions and a preparation method and application of the fluorescent probe, the chemical name of the fluorescent probe is 8-(4-((4-((tert-butyldiphenylsilyl)oxy)phenyl)methoxy)phenyl)-dipyrro

FLUORIDE FLUORESCENCE PROBE

Methylene blue (MB) derivatives selectively detect F? by desilylation reaction to act as a fluorescent probe.

A fluoride activated methylene blue releasing platform for imaging and antimicrobial photodynamic therapy of human dental plaque

We report a F- activated methylene blue (MB) releasing platform for imaging and antimicrobial photodynamic therapy (aPDT). By utilizing this platform, one of the selected probes, FD-F3, displays a remarkable near-infrared fluorescence and absor

A novel HPQ-based turn-on fluorescent probe for detection of fluoride ions in living cells

2-(2′-Hydroxyphenyl)-4(3H)-quinazolinone (HPQ) has been reported as a precipitating fluorescent molecule with excellent optical properties, such as large Stokes shift and strong fluorescence intensity. HPQF, a novel HPQ-based turn-on probe for localizable detection of fluoride ions, was designed, synthesized and fully characterized by 1H NMR, 13C NMR and HRMS. As a chemogenic fluoride probe, the tert-butyldiphenylsilane moiety of HPQF can be easily cleaved by fluoride. After spontaneous 1,6-elimination, HPQ molecule was generated to emit fluorescence under the excitation light. Further study shows that HPQF exhibited high selectivity and sensitivity for detection of fluoride. In addition, HPQF was utilized for the detection of fluoride in living cells.

A highly efficient and enantioselective synthesis of EEHP and EMHP: intermediates of PPAR agonists

Glycolate alkylation reactions of (S)-4-isopropyl-1-[(R)-1-phenylethyl]imidazolidin-2-one auxiliary has been optimised with high yields and diastereoselectivity on substituted benzyl and allyl bromides. The standardised reaction condition was employed for the stereoselective synthesis of EEHP and EMHP intermediates of PPAR agonists.

Fluorescence phenomena in nerve-labeling styryl-type dyes

Several classes of diversely substituted styryl type dyes have been synthesized with the goal of extending their expected fluorescent properties as much toward red as possible given the constraint that they maintain drug-like properties and retain high affinity binding to their biological target. We report on the synthesis, optical properties of a series of styryl dyes (d1-d14), and the anomalous photophysical behavior of several of these donor-acceptor pairs separated by long conjugated π-systems (d7-d10). We further describe an unusual dual emission behavior with two distinct ground state conformers which could be individually excited to locally excited (LE) and twisted intramolecular charge transfer (TICT) excited state in push-pull dye systems (d7, d9 and d10). Additionally, unexpected emission behavior in dye systems d7 and d8 wherein the amino-derivative d7 displayed a dual emission in polar medium while the N,N-dimethyl derivative d8 and other methylated derivatives d12-d14 showed only LE emission but did not show any TICT emission. Based on photophysical and nerve binding studies, we down selected compounds that exhibited the most robust fluorescent staining of nerve tissue sections. These dyes (d7, d9, and d10) were subsequently selected for in vivo fluorescence imaging studies in rodents using the small animal multispectral imaging instrument and the dual-mode laparoscopic instrument developed in-house.

Decarboxylative Csp3-Csp3 coupling for benzylation of unstable ketone enolates: Synthesis of: P -(acylethyl)phenols

A new decarboxylative Csp3-Csp3 coupling approach for the benzylation of ketone enolates has been developed. A variety of raspberry ketone derivatives were conveniently synthesized in good to excellent yields under mild conditions. A crossover reaction shed light on the mechanism of this tandem reaction.

Homochiral oligomers with highly flexible backbones form stable H-bonded duplexes

Two homochiral building blocks featuring a protected thiol, an alkene and a H-bond recognition unit (phenol or phosphine oxide) have been prepared. Iterative photochemical thiol-ene coupling reactions were used to synthesize oligomers containing 1-4 phosphine oxide and 1-4 phenol recognition sites. Length-complementary H-bond donor and H-bond acceptor oligomers were found to form stable duplexes in toluene. NMR titrations and thermal denaturation experiments show that the association constant and the enthalpy of duplex formation increase significantly for every additional H-bonding unit added to the chain. There is an order of magnitude increase in stability for each additional H-bonding interaction at room temperature indicating that all of the H-bonding sites are fully bound to their complements in the duplexes. The backbone of the thiol-ene duplexes is a highly flexible alkane chain, but this conformational flexibility does not have a negative impact on binding affinity. The average effective molarity for the intramolecular H-bonding interactions that zip up the duplexes is 18 mM. This value is somewhat higher than the EM of 14 mM found for a related family of duplexes, which have the same recognition units but a more rigid backbone prepared using reductive amination chemistry. The flexible thiol-ene AAAA·DDDD duplex is an order of magnitude more stable than the rigid reductive amination AAAA·DDDD duplex. The backbone of the thiol-ene system retains much of its conformational flexibility in the duplex, and these results show that highly flexible molecules can make very stable complexes, provided there is no significant restriction of degrees of freedom on complexation.

A novel oxidative transformation of alcohols to nitriles: An efficient utility of azides as a nitrogen source

An efficient methodology to oxidize benzylic and cinnamyl alcohols to their corresponding nitriles in excellent yields has been developed. This methodology employs DDQ as an oxidant and TMSN3 as a source of nitrogen in the presence of a catalytic amount of Cu(ClO4)2·6H 2O.