S. Kessar

发表

Benzyne cyclization route to benzo[c]phenanthridine alkaloids. Synthesis of chelerythrine, decarine, and nitidine

Y. P. Gupta, T. Mohammad, S. Kessar, 1988 .

Nucleophilic Coupling with Arynes

S. Kessar, 1991 .

Organic synthesisvia photoinduced hydrogen and electron transfer reactions

S. Kessar, 1984, Proceedings / Indian Academy of Sciences.

Synthetic studies in steroidal sapogenins and alkaloids—XII

A. Rampal, S. Kessar, S. Gandhi, 1968 .

Synthetic studies in steroidal sapogenins and alkaloids—X : Syntheses of tomatid-5-ene-3β-ol and solasodine

Y. P. Gupta, S. Kessar, R. Mahajan, 1971 .

A study of BF3-promoted ortho lithiation of anilines and DFT calculations on the role of fluorine-lithium interactions.

S. Lata, Paramjit Singh, P. Bharatam, 2008, Angewandte Chemie.

Studies in synthetic photochemistry-I synthesis of naphthaphenanthridine alkaloids

G. Singh, S. Kessar, P. Balakrishnan, 1974 .

New routes to condensed polynuclear compounds—VII : Synthesis of phenanthridines through a novel cyclisation reaction of haloanils

S. Kessar, R. Gopal, M. Singh, 1973 .

New routes to condensed polynuclear compounds—VIII : Scope of phenanthridine synthesis through cyclisation of haloanils

Manmohan J. Singh, S. Kessar, D. Pal, 1973 .

New routes to condensed polynuclear compounds, II direct benzyne cyclisation of n-chlorobenzylidene arylamines

Manmohan J. Singh, S. Kessar, 1969 .

Lewis Acid Complexation of Tertiary Amines and Related Compounds: A Strategy for alpha-Deprotonation and Stereocontrol.

Paramjit Singh, S. Kessar, 1997, Chemical reviews.

Lewis acid complexed heteroatom carbanions; synthesis of some α-pyridyl alcohols

Paramjit Singh, K. Singh, S. Kessar, 1991 .

Synthesis of 2,9-diazaphen anthrene and perlolidine through a pyridyne cyclisation reaction☆

Y. P. Gupta, Paramjit Singh, P. Pahwa, 1976 .

Lewis acid complexed heteroatom carbanions; a new concept for α-metallation of tertiary amines

Paramjit Singh, K. Singh, S. Kessar, 1991 .

New routes to condensed polynuclear compounds—VIII

S. Kessar, G. S. Joshi, 1973 .

New routes condensed polynuclear compounds.

Raj Ram Gopal, Manmohan J. Singh, S. Kessar, 1969 .

Facile generation and trapping of α-oxo-o-quinodimethanes : synthesis of 3-aryl-3,4-dihydroisocoumarins and protoberberines

N. Kaur, Paramjit Singh, R. Vohra, 1992 .

An interesting application of photocyclisation in aporhoeadane alkaloid synthesis

T. Singh, S. Kessar, Rahul Vohra, 1987 .

A novel route to condensed polynuclear systems; reality and illusion of benzyne intermediacy

S. Kessar, 1978 .

γ-Alkoxylactones as autounmasking synthons for a one-step construction of 1,3-oxygenated cyclopentanes. Synthesis of fredericamycin A core and spirobenzylisoquinoline alkaloids

N. Kaur, Paramjit Singh, R. Vohra, 1994 .

‘Counter-intuitive’ regioselectivity, subtle steric and solvation effects in lithiation of cyclic tertiary aralkylamines

Rajiv Kapoor, Paramjit Singh, Amarjit Kaur, 2005 .

Lewis Acid Complexed Heteroatom Carbanions. A New Concept for α‐ Metalation of Tertiary Amines.

S. Kessar, Pushpinder Singh, Rahul Vohra, 1991 .

Azasteroids IV. Synthesis of 13-aza-18-norequilenin methyl ether.

S. Kessar, M. Singh, A. Kumar, 1965, Tetrahedron letters.

Cross-Dehydrogenative Coupling of Dithiolanes with Ketones and Indoles under Metal-Free Conditions

Paramjit Singh, K. Singh, Aanchal Batra, 2013 .

Regioselective mono-O-alkylation of same pyrocatechoxide dianions

Y. P. Gupta, T. Mohammad, S. Kessar, 1983 .

Photochemistry of silylimines: Diels–Alder trapping of a photochemically generated o-quinodimethane intermediate from o-(N-trimethylsilyliminomethyl)toluene

T. Singh, S. Kessar, A. Mankotia, 1989 .

Synthetic studies in steroidal sapogenins and alkaloids. VI. Synthesis of isonarthogenin.

Y. P. Gupta, A. Rampal, S. Kessar, 1968, Tetrahedron.

Synthetic studies in steroidal sapogenins and alkaloids. V. Synthesis of kryptogenin, diosgenin and yamogenin.

Y. P. Gupta, A. Rampal, S. Kessar, 1968, Tetrahedron.

Cyclization of ortho-halogenated N-acylbenzylamines: a formal synthesis of (±)-cherylline

Paramjit Singh, S. Kessar, R. Chawla, 1981 .

New routes to condensed polynuclear compounds, VI synthetic scope of the benzyne cyclisation of schiff bases

Manmohan J. Singh, S. Kessar, G. Singh, 1971 .

Synthetic studies in steroidal sapogenins and alkaloids. IV. Stereochemistry of Michael addition to 5,17(20)-pregnadien-3-beta-ol-16-ones.

Y. P. Gupta, A. Rampal, S. Kessar, 1968, Tetrahedron.

Synthetic studies in steroidal sapogenins and alkaloids. 3. The synthesis and stereochemistry of isomeric 16-hydroxy- and 16-oxo-5,17(20)-pregnadien-3-beta-ols.

A. Rampal, S. Kessar, 1968, Tetrahedron.

The stereochemistry of quinolizidine and octahydropyrocoline

S. Kessar, 1962, Experientia.

Synthetic studies in steroidal alkaloids and sapogenins. VIII. Synthesis of tomatid-5- ene - 3β-ol and solasodine

S. Kessar, R. Mahajan, Priyanka Bhatti, 1969 .

Synthetic studies in steroidal alkaloids and sapogenins. VII. Synthesis of solanidine.

A. Rampal, S. Kessar, S. Gandhi, 1968, Tetrahedron letters.

An experimental and computational study of stereoselectivity and reactivity in Lewis acid promoted lithiation-substitution of tertiary amines.

Paramjit Singh, P. Bharatam, Amarjit Kaur, 2007, Journal of the American Chemical Society.

Facile α-deprotonation–electrophilic substitution of quinuclidine and DABCO

Paramjit Singh, K. Singh, S. Kessar, 1999 .

FLUORIDE ION PROMOTED REACTIONS OF ALPHA -HALO SILANES : SYNTHESIS OF STILBENES, EPOXIDES, CYCLOPROPANES, BENZAZEPINES, AND PHTHALIDYLISOQUINOLINES

Paramjit Singh, S. Kessar, D. Venugopal, 1991 .

Myringoplasties in Moist Ears

S. Kessar, P. Chamyal, K. Ahluwalia, 1981 .

Sodium fluoride therapy in stapedial otosclerosis

S. Kessar, P. Chamyal, K. Ahluwalia, 1990 .

Photochemistry of o-Vinylbenzaldehyde: Formation of a Ketene Methide Intermediate and Its Trapping with Secondary Amines

J. Scaiano, M. Barra, J. Gebicki, 1996 .

Photoreactivity of conjugated bichromophoric molecules; photoreaction of o-vinylbenzaldehyde with secondary amines

S. Kessar, A. Mankotia, G. Gujral, 1992 .

Anionic rearrangement of BF3-complexed N-allyl and aryl tetrahydroisoquinolines

V. Kaul, Paramjit Singh, G. Kumar, 1995 .

SYNTHETIC STUDIES IN STEROIDAL SAPOGENINS AND ALKALOIDS PART 12, SYNTHESIS OF SCEPTRUMGENIN AND ISONUATIGENIN

Y. P. Gupta, R. K. Mehra, S. Kessar, 1973 .

The mechanism of photolysis of n-methyldihydroberberine salts and a sequence for transposition of ring D substituents

A. Nanda, T. Singh, S. Kessar, 1983 .

Studies in synthetic photochemistry - II Synthesis of chelilutine and sanguilutine☆

Y. P. Gupta, S. Kessar, G. Sharma, 1977 .

Coupled chromophores - Part I Interaction in some seroidal γ - nitroketones

Y. P. Gupta, S. Kessar, M. Singh, 1969 .