Indian Journal of Chemistry

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1 47 Website address: Indian Journal of hemistry Sect. B: rganic hemistry including Medicinal hemistry VL. 1B UMBE March 01 TETS apid ommunication 481 An enantiospecific synthesis of a crinipellin Enantiospecific synthesis of a crinipellin, starting from campholenaldehyde has been described. D B A crinipellin Me Me Me Me Me Me A Srikrishna* & V Gowri Department of rganic hemistry, Indian Institute of Science, Bangalore 0 01, India Papers 48 Synthesis of -oxo-1-substituted tetrazoles derived from amino acids An application of amino acid derived isocyanates in the synthesis of -oxo-tetrazoles is described. The protocol has been extended for the insertion of tetrazolone in side chains of the Asp/Glu. Pg Pg == EtAc/ TMS- / hr Pg G agendra, arendra & Vommina V Sureshbabu* a Peptide esearch Laboratory, Department of Studies in hemistry, entral ollege ampus, Bangalore University, Dr B Ambedkar Veedhi, Bangalore 0 001, India IDIA J EM, 1B () 01

2 47 TETS 49 Synthesis and anticancer activity of,-diaryl-1,,4- oxadiazole derivatives ondensation of chlorobenzamidoxime with chloros ubstituted benzoyl chloride gave, Diaryl-1,,4-oxadiazole derivatives in a single step. These were screened for their anticancer activity. 1 I I 4 II Pyridine Stirring 4 1 III 4 4 Mrityunjoy Kundu*, Jagadish Singh, Brijesh Singh, Tirtha Ghosh, B Maiti & T K Maity Institute of Pharmaceutical Sciences, Guru Ghasidas University, Bilaspur , India 498 AgTf as an alternative catalyst for the regioselective cyclization of -(alkynyl)benzyl alcohols: Synthesis and biological evaluation of phthalans The synthesized compounds have been studied for antimicrobial and anticancer activity. 1 1 mol% AgTf toluene, reflux 1 1a-o a-o handrasekaran Praveen, handran Iyyappan, Paramasivan T Perumal* & K Girija rganic hemistry Division, entral Leather esearch Institute, hennai 00 00, India IDIA J EM, 1B () 01

3 Synthesis, characterization and antimicrobial screening of novel quinoline-thiazole derivatives Desai*, iraj Shihory, Kiran ajpara & Amit Dodiya Division of Medicinal hemistry, Department of hemistry, Mahatma Gandhi ampus, Bhavnagar University, Bhavnagar 4 00, India 14 Synthesis and antimicrobial activity of some new - chloro--substituted--(substituted -[1,]oxazino- [,-b]quinolin--(4,a,9a)-yl) benzo[b]thiophene--carboxamides Some new -chloro--substituted--(-substituted - [1,]xazino [,-b]quinolin--(4,a,9a)-yl)- benzo[b]thiophene--carboxamides have been synthesized and screened for their antimicrobial activity. B V Guruprasad & B M Mruthyunjayaswamy* Department of Studies and esearch in hemistry. Gulbarga University, Gulbarga 8 10, India 1 Synthesis of new -(substituted)--methyl-,-dihydro-1,, λ - benzoxazaphosphol--ones Pl P Venkateswarlu, P V V Satynarayana, V ageswara ao* & aga aju Department of hemistry, K V ollege, andigama 1 18, India IDIA J EM, 1B () 01

4 478 TETS otes Microwave assisted green synthesis of novel spiro isoxazolidine derivatives with α-chloro nitrones Microwave assisted 1,-dipolar cycloaddition reaction of α-chloro nitrones to novel α--methyl and α-phenylfuran derivative affords exclusively single regioselective -spiro isoxazolidines while the same reaction with α-methylene-γ-butyrolactone affords two diastereomeric -spiro isoxazolidines with high selectivity. l l ( ) _ a,b 1 = ; 4 l ( ) l ( ) a-a b-b Bhaskar hakraborty* & Prawin Kumar Sharma rganic hemistry Laboratory, Sikkim Government ollege, Gangtok 77 10, India 1 Synthesis of -aryl--(benzofuran--yl)-thiazolo[,- b][1,,4]triazoles using green procedures and their antibacterial activity -Aryl--(benzofuran--yl)acylthio-1,,4-triazoles 1a-h on cyclisation using polyphosphoric acid under microwave irradiations give -aryl--(benzofuran--yl)- thiazolo[,-b][1,,4]triazoles a-h. The antibacterial activity of these compounds has been described. 1 Br S Method A: (Absolute Ethanol/reflux) Method B: (Dry DMF/MWI) Method : (Ba(), grinding, T) 1 ' ' 7' 4' 1' 1 ' ' S 1a-h '' 1'' '' 4 4'' '' '' PPA-MWI 1 ' ' 7' 4' 1' ' 4 ' S 7 a-h 1 '' 1'' '' 4'' '' '' Komal Jakhar & J K Makrandi* Department of hemistry, Maharshi Dayanand University, ohtak , India IDIA J EM, 1B () 01

5 479 7 ne-pot, multicomponent synthesis of 4pyrano[,-c]pyrazoles in water at Several pyranopyrazoles are synthesized by an iodine catalyzed four component reaction at in water. The yields are excellent; procedure is simple, efficient and environmentally benign Iodine, Water -10 min, 80-90% 7 = -l, -F, -, -Me, -Me, -, etc., M B Madhusudana eddy & M A Pasha* Department of Studies in hemistry, Bangalore University, entral ollege ampus, Bengaluru 0 001, India Authors for correspondence are indicated by (*) IDIA J EM, 1B () 01