Explanipedia

Synthesis of some novel spiro heterocycles- Part II Open

V. Padmavathi, Boggu Jagan Mohan Reddy, Akula Baliah, Adivireddy Padmaja, D. Bhaskar Reddy · 2005

A new class of spiro-pyrimidinones, pyrazolidinones and isoxazolidinones are prepared from 4cyano-4-ethoxycarbonyl-piperidines / tetrahydropyrans / tetrahydrothiopyrans.

Crystal Structure of Dimethyl-2,6-diaryl-4-N-methylcyclohexanimine-1,1-dicarboxylate Open

S. M. Malathy Sony, M. Kuppayee, M. N. Ponnuswamy, V. Padmavathi, D. Bhaskar Reddy · 2004

The title compound crystallized in the monoclinic space group C2/c with cell parameters a = 30.812(4), b = 10.840(2), c = 12.401(2)Å, β = 106.83(1)°, V = 3964.6(11)Å3, Z = 8, Dcal = 1.278 Mg/m3 at T = 293 K. The structure was solved by dir…

REACTIVITY OF BISOLEFINIC SYSTEMS WITH DIAZOMETHANE AND HYDRAZINE HYDRATE - PART III Open

V. Padmavathi, M. Rajagopala Sarma, Adivireddy Padmaja, D. Bhaskar Reddy · 2002

CYCLOHEXANONE DERIVATIVES : SYNTHONS FOR SUBSTITUTED QUINOLINES Open

V. Padmavathi, B. Jagan Mohan Reddy, M. Rajagopala Sarma, Λ. Padmaja, D. Bhaskar Reddy · 2001

Substituted quinolines 4, S, and 9 were reported from o-allyl ethers of cyclohexanone derivatives by [2,3] sigmatropic rearrangement followed by cyclization.All the new compounds were characterized by 1R and 'H NMR spectra.

Synthesis of sulfur‐containing heterocycles: spiropyrimidinetriones, thioxopyrimidinediones, pyrazolidinediones, and isoxazolidinediones—part ii Open

D. Bhaskar Reddy, N. Chandrasekhar Babu, V. Padmavathi · 2001

1‐Aroyl‐2‐styrylsulfonylethene is the precursor for 4,4‐dimethoxycarbonyl‐2′,5‐diaryl‐3‐(1′,3′‐dioxolano)‐1‐thia‐1,1‐dioxide ( 4 ), which is the key intermediate for the synthesis of 7‐aroyl‐11‐aryl‐2,4‐diazaspiro[5,5]undecane‐1,3,5‐trione…

Synthesis of Some Fused Pyrazoles and Isoxazoles Open

V. Padmavathi, Boggu Jagan Mohan Reddy, A. Balaiah, K. Venugopal Reddy, D. Bhaskar Reddy · 2000

The α-keto methylene group in 3,5-diaryl-2-cyclohexenones 2 and 3,5-diarylcyclohexanones 8 have been used to obtain fused pyrazoles and isoxazoles. The new compounds were characterized by IR and 1H-NMR spectral data.

SYNTHESIS OF 5,7-DIPHENYL(-4-ALKYL)TRIHYDRO PYRANO |3,4-D||1,2,3|SELENADIAZOLES AND 5,7-DIPHENYL(-1-ALKYL)TRIHYDROPYRANO |3,4-D||1,2,3|THIADIAZOLES Open

D. Bhaskar Reddy, A. Somasekhar Reddy, V. Padmavathi, N. Chandrasekhar Babu · 2000

The title compounds were prepared by the oxidative cveli/ntion of scmicarbazonotctrahydropvran with selenium dioxide and thionyl chloride.

1,3-Dipolar Cycloaddition of Dipolar Reagents to Bifunctional Olefins in the Presence of Chloramine-T (CAT) Open

V. Padmavathi, R. Sumathi, N. Chandrasekhar Babu, D. Bhaskar Reddy · 1999

2-Pyrazolines and 2-isoxazolines are prepared by the reaction of araldehyde hydrazones and araldoximes with bifunctional olefins in the presence of chloramine-T, which also functions as a reagent for aromatization of the former.

AN EFFICIENT SYNTHESIS OF 6,8-DIARYLCARBAZOLES VIA FISCHER INDOLE CYCLIZATIONS Open

V. Padmavathi, K. Sharmila, Adivireddy Padmaja, D. Bhaskar Reddy · 1999

6,8-Diaryl -6,7-dihydrocarba/.ole(4), 6,8-diaryl -6,7,8,9, -terahydrocarbazole (7), 6,8-diary 1 carba/.olc(8) were obtaüied from the Fischer indole cyclization of 6 -carbcthoxy-3,5-diarylcyclohex-2-en-I -one (1).

SELENA AND THIADIAZOLE FUSED POLYCYCLICPOLYTHIA COMPOUNDS - PART-III Open

D. Bhaskar Reddy, A. Balaiah, V. Padmavathi, Adivireddy Padmaja · 1999

The selena and thiadiazole rings have been fused on l/2-thiachroman-4-ones i & 2, 4,9/4, 10-dithiahexahydroplienanthren-l-ones 9 & 10, D-homo-6, 11/7, 11-dithia-1,3,5(10), 8,13(14)-gonapentaen-18a-ones Γ7 & _18 through their semicarbazones…

INTERMOLECULAR CYCLOADDITION OF NITRILE IMINES AND NITRILE OXIDES TO 1,3-DIARYL PROP-2-EN-a-ONES Open

V. Padmavathi, R. Sumathi, A. Vijaya Bhaskar Reddy, D. Bhaskar Reddy · 1998

Synthesis of some 1,2-Bis(styrylsulphonylmethyl)benzenes Open

D. Bhaskar Reddy, N. Subba Reddy, S. REDDY · 1995

Department of Chemistry, S. V. University, Tirupati-517 502 Department of Chemistry, S. V. Arts College, Tirupati-517 502 Department of Chemistry. K. S. R. M. College of Engineering, Cuddapath Manuscript received 30 April 1993, revised 6 O…

Synthesis of some Alkoxycarbonylvinyl Sulphones Open

G. Ramachandra Reddy, S. V. S. ARUNA KUMAR GUPTA, D. Bhaskar Reddy, B. Seenaiah · 1992

Department of Chemistry, Sri Venkateswara University, Tirupati-517 502 Manuscript received 10 February 1992, revised 20 April 1992, accepted 27 May 1992 Synthesis of some Alkoxycarbonylvinyl Sulphones

Synthesis of α,β-Ethylenic Sulfones Open

M Seshapathi, R. Pavan Kumar Naidu, D. Bhaskar Reddy · 1975

A series of new α,β-ethylenic sulfones were prepared by the condensation of p-chlorophenylsulfonylacetic acid with various aryl aldehydes. The UV and IR spectra of all these compounds were recorded. Their IR spectra exhibited medium to str…

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