Search Results - "Yadav, Lal Dhar S."

Eosin Y catalyzed visible light mediated aerobic photo-oxidative cleavage of the C–C double bond of styrenes by Singh, Atul K., Chawla, Ruchi, Yadav, Lal Dhar S.

“…[Display omitted] A mild, efficient, and metal-free oxidative cleavage of C–C double bond to aldehydes utilizing eosin Y as an organophotoredox catalyst has…”
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Visible-light-promoted aerobic oxidative cyclization to access 1,3,4-oxadiazoles from aldehydes and acylhydrazides by Yadav, Arvind K., Yadav, Lal Dhar S.

“…A novel and practical access to symmetrical and unsymmetrical 2,5-disubstituted 1,3,4-oxadiazoles directly from aldehydes and acylhydrazides using visible…”
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Metal-Free, One-Pot Oxidative Conversion of Aldehydes to Primary Thioamides in Aqueous Media by Yadav, Arvind K., Srivastava, Vishnu P., Yadav, Lal Dhar S.

“…One-pot tandem reactions of a variety of aldehydes with aqueous ammonia, molecular iodine, and O,O-diethyl dithiophosphoric acid readily afford the…”
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Stereoselective cascade reactions for construction of polyfunctionalised octahydroquinolines via [2C+2C+1C,1N] cyclisation by Rai, Ankita, Singh, Atul K., Singh, Pankaj, Yadav, Lal Dhar S.

“…A conceptually unifying approach for a highly enantio- and diastereoselective synthesis of polyfunctionalised octrahydroquinolines incorporating three…”
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Visible Light Activated Radical Denitrative Benzoylation of β‐Nitrostyrenes: A Photocatalytic Approach to Chalcones by Tripathi, Shubhangi, Kapoor, Ritu, Yadav, Lal Dhar S.

“…A metal‐free, convenient photocatalytic approach to chalcones from β‐nitrostyrenes and benzaldehydes via a radical denitrative benzoylation pathway is…”
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Aerobic oxysulfonylation of alkynes in aqueous media: highly selective access to β-keto sulfones by Singh, Atul K., Chawla, Ruchi, Yadav, Lal Dhar S.

“…The first application of inexpensive commercially available sulfinate salts to produce β-keto sulfones directly from alkynes via aerobic oxysulfonylation has…”
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Visible-light-driven electrocyclization of activated allylic amines via azomethine ylide formation by Yadav, Arvind K., Yadav, Lal Dhar S.

“…[Display omitted] Visible-light-driven aerobic oxidative 6π-electrocylization of tetrahydroisoquinoline (THIQ) derived activated allylic amines leading to…”
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Intermolecular cyclization of N-methylanilines and maleimides to tetrahydroquinolines via K2S2O8 promoted C(sp3)–H activation by Yadav, Arvind K., Yadav, Lal Dhar S.

“…[Display omitted] •One-pot synthesis of tricyclic compounds incorporating tetrahydroquinoline core.•Activation of C(sp3)–H carbon followed by aromatization…”
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Cyclopropenone-Catalyzed Direct Conversion of Aldoximes and Primary Amides into Nitriles by Rai, Ankita, Yadav, Lal Dhar S.

“…Efficient conversion of aldoximes and primary amides into nitriles by employing cyclopropenone as an organocatalyst is reported. The reaction proceeds smoothly…”
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Visible-light photoredox catalytic approach for the direct synthesis of 2-aminobenzothiazoles from anilines by Singh, Manjula, Dhar S. Yadav, Lal, Krishna Pal Singh, Rana

“…[Display omitted] •Photocatalytic approach to 2-aminobenzothiazoles.•Visible-light-promoted radical reactions.•Addition/cyclization cascade of thiocyanate and…”
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The direct thioesterification of aldehydes with disulfides via NHC-catalyzed carbonyl umpolung strategy by Singh, Santosh, Yadav, Lal Dhar S.

“…An efficient N-heterocyclic carbene (NHC)-catalyzed direct thioesterification of aldehydes and α,β-unsaturated aldehydes (enals) with diaryl disulfides is…”
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A new application of Baylis–Hillman alcohols to a diastereoselective synthesis of 3-nitrothietanes by Rai, Ankita, Yadav, Lal Dhar S.

“…Three key reactions, the generation of a nucleophile, an thia-Michael addition and an intramolecular cyclisation, were used to achieve an efficient one-pot…”
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Carbon tetrabromide mediated oxidative cyclocondensation of ketones and thioureas: an easy access to 2-aminothiazoles by Keshari, Twinkle, Kapoorr, Ritu, Yadav, Lal Dhar S.

“…[Display omitted] A simple, mild, and efficient one-pot method for the synthesis of substituted 2-aminothiazoles has been reported. The reaction involves the…”
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A route to functionalized pyrimidines from carbohydrates via amine-driven dehydrative ring transformations by Yadav, Lal Dhar S., Awasthi, Chhama, Rai, Vijai K., Rai, Ankita

“…A novel and expeditious synthetic protocol for functionalized pyrimidines using unprotected aldoses as biorenewable resources is reported. The synthesis…”
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Direct synthesis of 6-sulfonylated phenanthridines via silver-catalyzed radical sulfonylation-cyclization of 2-isocyanobiphenyls by Singh, Manjula, Yadav, Arvind K., Yadav, Lal Dhar S., Singh, Rana Krishna Pal

“…[Display omitted] •Direct synthesis of 6-alkyl/arylsulfonyl phenanthridines.•Silver-catalyzed sulfonylation with sodium sulfinates.•Sulfonyl radical triggered…”
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Visible-light-promoted cyclodesulfurization of phenolic thioureas: an organophotoredox catalytic approach to 2-aminobenzoxazoles by Yadav, Vinod K., Srivastava, Vishnu P., Yadav, Lal Dhar S.

“…[Display omitted] A facile and efficient one-pot operation for the photo-oxidative cyclodesulfurization of o-phenolic thioureas to afford 2-aminobenzoxazoles…”
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Biginelli reaction starting directly from alcohols by Garima, Srivastava, Vishnu P., Yadav, Lal Dhar S.

“…An efficient of one-pot oxidative access to 3,4-dihydropyrimidin-2-(1 H)-ones directly from aromatic alcohols under mild conditions is reported. The protocol…”
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Visible-light-induced cyanation of aza-Baylis–Hillman adducts: a Michael type addition by Srivastava, Vishnu P., Yadav, Arvind K., Yadav, Lal Dhar S.

“…Visible-light-induced aerobic oxidative cyanation of aza-Baylis–Hillman (aza-BH) adducts providing valuable allylic cyanides in good to excellent yields has…”
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An easy access to fluoroalkanes by deoxygenative hydrofluorination of carbonyl compounds via their tosylhydrazones by Yadav, Arvind K, Srivastava, Vishnu P, Yadav, Lal Dhar S

“…An efficient and operationally simple synthesis of fluoroalkanes by deoxygenative hydrofluorination of carbonyl compounds via their tosylhydrazone surrogates…”
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Novel Salicylaldehyde-Based Mineral-Supported Expeditious Synthesis of Benzoxazin-2-ones by Yadav, Lal Dhar S, Kapoor, Ritu

“…One-pot montmorillonite K-10 clay supported reactions of either salicylaldehyde/2-hydroxyacetophenone hydrazones and aryl-/alkylureas or…”
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