Organosulfur compounds are omnipresent in many drugs, natural products, and functional materials; therefore, methodologies of C–S bond formation reactions desirable synthesis. The recent trend to control chemical by cooperative multiple weak interactions have emerged as one the popular topics supramolecular catalysis. Herein, we made a collection literature which utilizes noncovalent like H-bonding, solvent bonding, S–H···π, C–H···π, π–π stacking, charge-transfer complexation, etc. toward...

Herein we report a cascaded chalcogenation of aryl alkynoates or N-arylpropynamides using 9-mesityl-10-methylacridinium perchlorate as visible light photocatalyst to obtain selectively either 3-sulfenylated/selenylated coumarins spiro[4,5]trienones. In radical initiated process, the spiro-cyclization reaction was favored due presence -OMe -F substituent at para position group, which helped stabilize allylic intermediate formed during reaction. Otherwise, 6-endo-trig cyclization led...

The synthesis of organochalcogenides remains a valuable area research due to their widespread biological applications, particularly in pharmaceuticals. Herein, our study details the B(C6F5)3-catalyzed Csp2–H functionalization diverse arenes, heteroarenes, and pharmacophores with thiosuccinimides or selenosuccinimides, providing selective access chalcogenated products. This protocol enables late-stage chalcogenation drug molecules such as anti-inflammatory naproxen, estrogen steroid hormone...

In a chlorinative cyclization, Mes-Acr-MeClO4 acted as visible-light photocatalyst to obtain 3-chlorocoumarins from aryl alkynoates and N-chlorosuccinimide (NCS). The radical initiated reaction proceeded in cascading manner via Cl- addition alkynoates. Next, 5-exo-trig spirocyclization subsequent 1,2-ester migration led the formation of C-C C-Cl bonds.

Abstract Herein we report the use of N ‐iodosuccinimide (NIS) as a bifunctional reagent for regio‐ and ( E )‐selective C(sp 2 )‐H sulfonylation reaction styrenes. Styrenes sulfonyl hydrazides treated with NIS potassium carbonate in ethanol at 70 °C resulted )‐vinyl sulfones exclusively good to excellent yields. NIS, plays dual role generate radical from an initial stage finally gives β ‐iodosulfone intermediate which was further converted sulfones. Overall, sustainable method mild, metal...

Hydrogen bonding interactions like N–H⋯S, N–H⋯N and C–H⋯O helped to obtain either (<italic>Z</italic>)-selective anti-Markovnikov or Markovnikov Thiol–Yne-Click products exclusively with excellent yields from an internal alkyne under metal free conditions.

We report herein the use of 9-mesityl-10-methylacridinium perchlorate as visible-light photocatalyst for dithioacetalization or thioetherification benzyl alcohols in one pot using aerial dioxygen a terminal oxidant. EPR analysis and Stern-Volmer quenching studies helped to rationalize single electron transfer (SET) mechanism.

In this study, we demonstrate the proficiency of orthorhombic CsPbBr 3 to perform C–H chalcogenation reactions electron-rich arenes under conditions involving polar solvents, aerobic environments, and visible-light irradiation.

We report a cascaded oxidative sulfonylation of N-propargylamine via three-component coupling reaction using DABCO·(SO2)2 (DABSO). 3-Arylsulfonylquinolines were obtained by mixing diazonium tetrafluoroborate, N-propargylamine, and DABSO under argon atmosphere in dichloroethane (DCE) for 1 h. In radical pathway, was utilized as the sulfone source an oxidant this radical-mediated reaction.

Abstract The diverse applicability of diazo compounds as versatile reagents has enlarged the chemical toolbox in organic synthesis. Over past few decades, transition-metal-catalyzed compound activation ignited classical synthetic methodology via utilizing highly reactive metal carbenoid species. Many reviews have also appeared literature that show advantages and disadvantages metal-catalyzed compounds. Recently, tris(pentafluorophenyl)borane-mediated reactions remodeled this research area...

Abstract Herein we demonstrate that an anti‐Markovnikov selective thiol‐yne‐click (TYC) reaction could be achieved between phenyl acetylenes and thiophenols by exploiting a newly identified S−H⋅⋅⋅π non‐covalent interaction without using any catalysts, additives solvents. Natural bond orbital (NBO) analyses also supported cooperative π–π stacking interactions helped to promote this regioselective reaction. The hydrothiolated products were isolated in near quantitative yields. Also, the...

The S⋯O interaction, which is well known for proteins, has been used to obtain (<italic>Z</italic>)-selctive <italic>anti</italic>-Markovnikov vinyl sulfides from terminal alkynes and thiols <italic>via</italic> organocatalysis using ^tBuOLi (1 mol %) in ethanol.

Herein we report the B(3,4,5-F3H2C6)3-catalysed C3-allylation of indoles using allylic esters. 25 examples C3-allylated products are presented in up to 97% yield. The mechanism for reaction was explored detailed Density Functional Theory (DFT) studies.

Abstract Fluorinated triarylboranes have shown a breadth of reactivity as catalysts for organic transformations, particularly in carbon‐carbon bond forming reactions. Herein we report facile, metal‐free synthetic route the addition 2‐phenylimidazo[1,2‐ ]pyridines to α , β ‐unsaturated ketones using B(C 6 F 5 ) 3 catalyst. 25 examples reactions leading products up 97 % yield are reported. DFT studies show role and hydrogen shuttling mechanism this Michael alkylation.

Introduction of an iodine(III) reagent as visible‐light photocatalyst for chemoselective dithioacetalization has been the limelight current methodology. The mechanistic investigations reveal that reactions proceeded via radical pathway upon light induced hemolytic cleavage C–I bond catalyst. Several dithioacetals were easily accessible at room temperature and environmentally benign condition.

N -iodosuccinimide (NIS) promoted and sulfur⋯iodine (S⋯I) interaction controlled cross-metathesis reaction of symmetrical to unsymmetrical disulfides is reported. The photoswitchability shown an diaryldisulfide.

Selective radical addition to terminal alkynes is always a difficult task achieve because it gives mixture of stereo- and regioisomers. Herein we describe the selective aliphatic thiols or alcohols N-phenylpropiolamides (terminal alkynes) using lithium tert-butoxide (tBuOLi) in ethanol as promoter. Mechanistically, has been shown that reaction proceeded through generation thiyl intermediate, amide group N-phenylpropiolamide could help activation alkyne, which led thioacetalization via...

Precise control of selective alkene functionalization is a continuing challenge in the chemical community. In this study, we develop substitution‐controlled regiodivergent thioetherification di‐ or trisubstituted alkenes using 10 mol% tris(pentafluorophenyl)borane [B(C6F5)3] as catalyst and N–thiosuccinimide sulfenylating reagent. This metal‐free borane catalyzed C–S bond forming method utilized for Csp2–H sulfenylation reaction to synthesize an array diphenylvinylsulfide derivatives with...

The stability of CsPbBr3 nanocrystals (NCs) in open air remains challenging and can vary depending on the specific material conditions. Generally, perovskites are prone to degradation due oxygen, moisture, polar solvent, light exposure. In this work, we have aimed develop strategies improve perovskite broaden its potential applications organic synthesis. An orthorhombic nano-crystal (NC) obtained from bromide precursor dibromoisocyanuric acid, work efficiently as a visible photocatalyst...

In this paper, we compare the reactivity of a series triaryl borates B(OArx)3 as catalysts for hydroboration alkenes and alkynes. It was observed that commercially available B(OPh)3 performed poorest, whereas with o-F atoms appeared to perform much better.