154612-64-3

Upstream product

• 882-33-7 diphenyldisulfane 
• 109384-19-2 t-butyl 4-hydroxy piperidine-1-carboxylate 
• 108-98-5 thiophenol 
• 180695-79-8 tert-butyl 4-bromo-1-piperidinecarboxylate 
• 1872262-73-1 1-(tert-butyl) 4-(1,3-dioxoisoindolin-2-yl) piperidine-1,4-dicarboxylate 
• 84358-13-4 N-[(tert-butoxy)carbonyl]piperidine-4-carboxylic acid 
• 1212-08-4 S-Phenyl benzenethiosulfonate 

Downstream Products

• 400729-18-2 tert-butyl 4-(phenylsulfonyl)piperidine-1-carboxylate 
• 285994-99-2 1-[2-(4-fluorophenyl)-2-oxoethyl]-4-phenylsulphonylpiperidine 
• 151666-11-4 2-chloro-N-[4-(phenylthio)-1-piperidinyl]adenosine 
• 151666-25-0 1-Amino-4-phenylthiopiperidine 

Relevant academic research and scientific papers

Visible Light-Driven Decarboxylative Alkylation of Aldehydes via Electron Donor–Acceptor Complexes of Active Esters

There are some synthesis methods from widely available aldehydes to the corresponding ketones, however, they involved in multistep reactions with Grignard’s reagents or transition metal catalysts. In this paper, we have developed photocatalyst-free and visible light-driven decarboxylative alkylation of pyridinaldehydes. The photochemical reactions are initiated via photoinduced single electron transfer from triethylamine to N-hydroxyphthalimide esters in electron donor–acceptor complexes. This photochemical method can achieve to translate 15 pyridinaldehydes and 11 2-quinolinaldehydes to the corresponding ketones. Furthermore, this strategy can also achieve two other transformations, disulfanes to aryl sulfides and a styrene sulfone to the alkyl-substituted alkene.

Base-Mediated Radical Borylation of Alkyl Sulfones

A practical and direct method was developed for the production of versatile alkyl boronate esters via transition metal-free borylation of primary and secondary alkyl sulfones. The key to the success of the strategy is the use of bis(neopentyl glycolato) diboron (B2neop2), with a stoichiometric amount of base as a promoter. The practicality and industrial potential of this protocol are highlighted by its wide functional group tolerance, the late-stage modification of complex compounds, no need for further transesterification, and operational simplicity. Radical clock, radical trap experiments, and EPR studies were conducted which show that the borylation process involves radical intermediates.

Copper-Catalyzed Intermolecular Functionalization of Unactivated C(sp3)-H Bonds and Aliphatic Carboxylic Acids

Intermolecular functionalization of C(sp3)-H bonds and aliphatic carboxylic acids enables the efficient synthesis of high value-added organic compounds from readily available starting materials. Although methods involving hydrogen atom transfer have been developed for such functionalization, these methods either work for only activated C(sp3)-H bonds or bring in a narrow set of functional groups. Here we describe a Cu-catalyzed process for the diverse functionalization of both unactivated C(sp3)-H bonds and aliphatic carboxylic acids. The process is enabled by the trapping of alkyl radicals generated through hydrogen atom abstraction by arylsulfonyl-based SOMO-philes, which introduces a large array of C, N, S, Se, and halide-based functional groups. The chemoselectivity can be switched from C-H functionalization to decarboxylative functionalization by matching the bond dissociation energy of the hydrogen atom transfer reagent with that of the target C-H or O-H bond.

Method for decarboxylation generation C-S key of active ester compound

To an aspect of the present invention, there is provided a method of decarboxylation-generating C-S bonds by using an active ester compound in which the general formula is R under light irradiation. a Active ester of - COONPhth and general form

Visible-light induced decarboxylative coupling of redox-active esters with disulfides to construct C-S bonds

A novel method has been established for the construction of C-S bonds using redox-active esters with disulfides in the presence of Ru-photoredox catalyst. This method exhibits remarkable functional group tolerance across a wide scope of substrates. Under

Process for alkylation of group VI compound

The invention provides a process for alkylation of a group VI compound. Under an illumination condition, an active ester with a general formula of Ra-COONPhth and a main group VI compound with a general formula of Rb-A-Rc undergo the following reaction un

Dealkenylative Thiylation of C(sp3)-C(sp2) Bonds

Carbon-carbon bond fragmentations are useful methods for the functionalization of molecules. The value of such cleavage events is maximized when paired with subsequent bond formation. Herein we report a protocol for the cleavage of an alkene C(sp3)-C(sp2) bond, followed by the formation of a new C(sp3)-S bond. This reaction is performed in nonanhydrous solvent and open to the air, employs common starting materials, and can be used to rapidly diversify natural products.

Efficient Kinetic Resolution of Sulfur-Stereogenic Sulfoximines by Exploiting CpXRhIII-Catalyzed C?H Functionalization

Chiral sulfoximines with stereogenic sulfur atoms are promising motifs in drug discovery. We report an efficient method to access chiral sulfoximines through a C?H functionalization based kinetic resolution. A rhodium(III) complex equipped with a chiral Cpx ligand selectively participates in conjunction with phthaloyl phenylalanine in the C?H activation of just one of the two sulfoximine enantiomers. The intermediate reacts with various diazo compounds, providing access to chiral 1,2-benzothiazines with synthetically valuable substitution patterns. Both sulfoximines and 1,2-benzothiazines were obtained in high yields and excellent enantioselectivity, with s-values of up to 200. The utility of the method is illustrated by the synthesis of the key intermediates of two pharmacologically relevant kinase inhibitors.

4-(Phenylsulfonyl)piperidines: Novel, selective, and bioavailable 5-HT2A receptor antagonists

On the basis of a spirocyclic ether screening lead, a series of acyclic sulfones have been identifed as high-affinity, selective 5-HT2A receptor antagonists. Bioavailability lacking in the parent, 1-(2-(2,4-difluorophenyl)ethyl)-4-(phenylsulfon

N-substituted adenosines as novel neuroprotective A1 agonists with diminished hypotensive effects

The synthesis and pharmacological profile of a series of neuroprotective adenosine agonists are described. Novel A1 agonists with potent central nervous system effects and diminished influence on the cardiovascular system are reported and compared to selected reference adenosine-agonists. The novel compounds featured are derived structurally from two key lead structures: 2- chloro-N-(1-phenoxy-2-propyl)adenosine (NNC 21-0041, 9) and 2-chloro-N-(1- piperidinyl)adenosine (NNC 90-1515, 4). The agonists are characterized in terms of their in vitro profiles, both binding and functional, and in vivo activity in relevant animal models. Neuroprotective properties assessed after postischemic dosing in a Mongolian gerbil severe temporary forebrain ischemia paradigm, using hippocampal CA1 damage endpoints, and the efficacy of these agonists in an A1 functional assay show similarities to some reference adenosine agonists. However, the new compounds we describe exhibit diminished cardiovascular effects in both anesthetized and awake rats when compared to reference A1 agonists such as (R)phenylisopropyladenosine (R-PIA, 5), N- cyclopentyladenosine (CPA, 2), 4, N-[(1S,trans)-2- hydroxycyclopentyl]adenosine (GR 79236, 26), N-cyclohexyl-2'-O- methyladenosine (SDZ WAG 994, 27), and N-[(2-methylphenyl)methyl]adenosine (Metrifudil, 28). In mouse permanent middle cerebral artery occlusion focal ischemia, 2-chloro-N-[(R)-[(2-benzothiazolyl)thio]-2-propyl]adenosine (NNC 21-0136, 12) exhibited significant neuroprotection at the remarkably low total intraperitoneal dose of 0.1 mg/kg, a dose at which no cardiovascular effects are observed in conscious rats. The novel agonists described inhibit 6,7-dimethoxy-4-ethyl-β-carboline-3-carboxylate-induced seizures, and in mouse locomotor activity higher doses are required to reach ED50 values than for reference A1 agonists. We conclude that two of the novel adenosine derivatives revealed herein, 12 and 5'-deoxy-5'-chloro-N-[4-(phenylthio)-1- piperidinyl]adenosine (NNC 21-0147, 13), representatives of a new series of P1 ligands, reinforce the fact that novel selective adenosine A1 agonists have potential in the treatment of cerebral ischemia in humans.