Indian
Journal of Chemistry
Sect.
B. Organic Chemistry including Medicinal Chemistry
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VOL.
41B |
NUMBER 11 |
NOVEMBER 2002 |
CONTENTS
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Rapid Communications
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2330 |
Synthesis
of highly constrained unusual |
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Sambasivarao Kotha*, Arun Kumar Ghosh & Manoranjan Behera |
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Papers |
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2333 |
Synthessis of new tetracyclic aristotelia alkaloids |
R(-) carvone 6 is converted to the nitromethylcarvone ketals 8a,b, which on condensation with grammine afford the isomers 9a and 9c. 9a on Zn-Hg/HCl reduction and
cyclization yields 1a. On the
other hand 9c on reduction and hydrolysis affords 2a. |
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Md Abul Hashem* & Zannatul Ferdoush |
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2342 |
C- vs O-Alkylation of
1,3-dicarbonyl compounds using microwave irradiation |
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Sandeep Nayyar, Inderraj Trehan & Jasamrit Kaur* |
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2346 |
Information-bearing base-pair sets involving
hydrogen-bonded nitrogen heterocycles: A theoretical modelling study |
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Deborah L Buam & R H Duncan Lyngdoh*
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2357 |
Synthesis of new
1,2,4-triazolo-thiadiazoles and 2-oxoazetidines as antimicrobial, anticonvulsant
and antiinflammatory agents |
Several 2-arylidenylamino-5-(N1-1,2,4-triazolo-methyl)-1, 3, 4-thiadiazoles 4 and 1-[5'-(N1-1, 2, 4-triazolo-methyl)-1',3',4'-thiadiazol-2'-yl]-4-(substituted phenyl)-3-chloro-2-oxo-azetidines 5 have been synthesized and evaluated for their antimicrobial, anticonvulsant and antiinflammatory activities. |
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S
K Srivastava*, Soumya Srivastava
& S D Srivastava |
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2364 |
Condensed
bridgehead nitrogen heterocyclic systems: Synthesis and bioactivity of
2,3-dihydrothiazolo[3',2':2,3]-as-triazino[5,6-b]
indole, 2,3-dihydro-4H-[1,3]thiazino[3',2' : 2,3]-as-triazino[5,
6-b]indole and quinoxalino[2', 3 ': 4,5]thiazolo[3,2-b]indolo[2,3-e]-as-triazine
and their isomeric systems |
Synthesis and
bioactivity of 7-isopropyl-2, 3-dihydrothiazolo[3', 2' : 2, 3]-as-triazino[5,
6-b]indole, 2, 3-di-hydro-8-isopropyl-4H-[1,
3]thiazino[3', 2':2, 3]-as-triazino[5, 6-b]indole,
9-isopropylquinoxalino[2',3':4, 5]-thiazolo[3, 2-b]indolo[2, 3-e]-as-triazine,
7-isopropyl-2,3-dihydro-[2',3':3,4]-as-triazino[5,6-b]indole,
8-iso-propyl-1H-2,3-dihydro[1, 3]thiazino[2', 3' : 3, 4]-as-tri-azino[5,6-b]indole
and 3-isopropylquinoxalino [2',3': 4, 5]thiazolo[2,3-c]-indolo[2,3-e]-as-triazine
are reported. |
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Jag Mohan* & Ashok Kumar
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2367 |
Synthesis and blood pressure lowering
activity of some newer quinazolinones
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Some new
quinazolinones have been synthesized and evaluated for their hypotensive
activity. |
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Mirdula Tyagi, V K
Srivastava,
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2371 |
Synthesis of potential quinazolinyl pyrazolines and quinazolinyl
isoxazolines as anticonvulsant agents |
Quinazolinyl pyrazolines and quinazolinyl isoxazolines have been synthesized as anticonvulsant agents. |
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Archana,
V K Srivastava, Ramesh Chandra & Ashok Kumar* |
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2376 |
QSAR
by molecular topology of 2,4-dihydroxy-thiobenzanilides ¾ A virtual
screening approach to optimize the antifungal activity |
Molecular topology has been used with success to find QSAR models to predict the antifungal activity of 2,4-dihydroxythiobenzanilides.
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R García-Domenech*, A I
Catalá, A García-García,
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2385 |
Trisulcusine: A novel spiro quinazoline alkaloid
from Anisotes trisulcus |
Anisotes trisulcus have afforded a new spiro quinazoline alkaloid trisulcusine 1, along with earlier reported alkaloids peganine 2, vasicinone 3 and 5-methoxypeganine 4. |
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Adnan J Al-Rehaily, Khalid A EL-Sayed,
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[[[[[[
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2390 |
Phytochemical
investigation of Hemidesmus indicus R. Br. roots |
Phytochemical investigation of the roots of Hemidesmu indicus
furnish 2, 6, 10, 14, 18, 22-hexamethyl-tetracos-1-oic acid (hemidesmusoic
acid), n-octyl-2, 6, 10, 14-tetramethyl
hexadec-7-ol-10-en-13-on-1-octanoate (octyl hemidesditerpenoate) and n-non-2¢-en-1¢-yl-13-(15, 19, 19-trimethyl-cyclohex-14,
16-dienyl)-2, 6, 10-trimethyl-tetradec-6-ol-13-on-1-oate (hemidesmusesterterpenoic
ester) as the new phytoconstituents along with b-sito-steryl
glucuronate and b-sitosterol. |
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S K Roy, M Ali*, M P Sharma &
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Notes
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2395 |
A practical synthesis of trans-resveratrol |
A practical preparation of
biologically active substance trans-resveratrol
1 has been described
starting from cheap and easily available materials such as
3,5-dihydroxybenzoic acid and 4-methoxylbenzyl alcohol. |
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Zhen Lu Shen, Guang
Lan Zhuo &
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2399 |
Synthesis of amoradicin
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The synthesis of amoradicin 6 is
described.
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M Amzad Hossain* & S M Salehuddin |
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2402 |
Synthesis of some
spiroheterocycles |
5-
Sprio-4-acetyl-2-(acetylamino)-D2-1, 3, 4-thiadiazo-line derivatives have
been synthesised by cyclisation of thiosemicarbazones of
2,6-diphenylpiperidin-4-one derivatives using acetic anhydride and fully
characterised by their analytical and spectral data. |
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S Balasubramanian, C Ramalingan & |
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2405 |
Synthesis
of 6,6'-methylenebisquinazolinones and 7,7'-methylenebis-1,4-benzodiazepin-2,5-diones
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L Manmohan Reddy, P Pratap Reddy
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2410 |
N,N-Linked bisazaheterocycles: Part VI — Synthesis
of tetraquinazolinones
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L Manmohan Reddy, P
Pratap Reddy &
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2414 |
Microwave assisted solid
phase synthesis of pyrimidine derivatives |
Microwave assisted solid phase synthesis
of derivatives of thiobarbituric acids has been reported. |
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Mazaahir Kidwai*, Bhavesh Dave & R
Venkataramanan
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2419 |
Microwave assisted deoximation
of carbonyl compounds using aqueous hydrochloric acid
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An effective and mild hydrolytic cleavage of oximes to carbonyl compounds in the presence of aqueous hydrochloric acid under microwave irradiation is a mild technique. |
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Marimuthu Anniyappan, D Muralidharan & Paramasivan T Perumal* |
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2421 |
Friedel
Crafts reaction on [2,3]oxopolymethelene indoles |
1,2 R=H, CH3,
Cl 3 R = H, CH3, Cl, COCH3 |
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K J Rajendra
Prasad*, R Balamurali &
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2425 |
Oxidation of urazoles to
triazolinediones under solvent-free conditions using permanganate and
alumina-supported permanganate |
Treatment of urazoles
with potassium permanganate leads to a simple and mild oxidation reaction,
which produces triazolinediones. The reaction is conducted under
solvent-free conditions and triazolinediones can be isolated in good to high
yields by a simple work-up procedure.
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Abdol
R Hajipour*, Shadpour E Mallakpour*, Mohammad A Zolfigol & H Adibi
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2428 |
Crystal structure of N[(2¢-hydroxy)benzylidene]-3-chloro-4-fluroaniline |
Crystal structure of the title compound has been determined by X-ray methods. |
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K V Arjuna
Gowda, M M Kokila, Puttaraja, |
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2432 |
Do chromium(VI)
complexes oxidize via a common
mechanism? |
The oxidation of 2-propanol by 12 chromium(VI) reagents exhibit identical kinetic behavior and the DG¹s do not differ significantly. |
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Cr(VI) +
CH3CHOHCH3 ® CH3COCH3 + Cr(IV) +
2H+ slow |
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C Karunakaran*, K Latha,
R Venkataramanan & S Senthil Velan
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2436 |
Synthesis and antifungal activities of w-(5-arylamino-1,3,4-thiadiazol-2-thio)- w-(1H-1,2,4-triazol-1-yl)acetophenones |
Several
w-(5-arylamino-1, 3,
4-thiadiazol- 2- thiol)-w-(1H-1,2,4-triazol-1-yl)acetophenones
4a-i have been synthesized. The
representative compounds exhibit some antifungal and plant growth regulatory
activities. |
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Chang-Hu Chu, Xin-Ping Hui, Peng-Fei Xu,
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Authors for correspondence are indicated by (*) |
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