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Synthesis, characterisation, and study of biological activity of some sulphur heterocycles

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dc.contributor.author Das, Gouranga Chandra
dc.date.accessioned 2019-11-20T05:05:59Z
dc.date.available 2019-11-20T05:05:59Z
dc.date.issued 2018-02-08
dc.identifier.uri http://localhost:8080/xmlui/handle/123456789/1116
dc.description This dissertation submitted to the University of Dhaka in partial fulfillment of the requirements for the degree of Doctor of Philosophy (PhD) in Chemistry. en_US
dc.description.abstract Long back in 1959, Latif and co-workers, department of Chemistry, Rajshahi University , Bangladesh in an attempt to prepare dithiobenzoic acid [Ph-(C=S)-SH] from a mixture of benzaldehyde and ethanol in presence of aqueous sodium sulphide ended up with structure (1), 3-benzyl -2,6-diphenyl-2H-thiopyran-5-carboxaldehyde. The structure of (1) was later confirmed by a number of workers who also proposed mechanism for its formation. But none of them could either isolate or gave any evidence in support of the intermediates proposed in the mechanism. Keeping this view in mind , we took this project to justify their mechanism by using some of the intermediates and some more compounds which could be transformed into those intermediates in situ and ended up with compound (1) , compounds analogous to (1) are (7), (10) , and some other products not analogous to (1) are (9), (15), (15a), (16), (17), and (18). The compound (9) and (10) are analogous to the intermediate (5). One of the products (17) was isolated for the first time is an interesting noble compound having sulphur in an eight membered ring (7-cinnamoyl-2,6,8-triphenylthiocane- 4-one) . en_US
dc.language.iso en en_US
dc.publisher University of Dhaka en_US
dc.title Synthesis, characterisation, and study of biological activity of some sulphur heterocycles en_US
dc.type Thesis en_US


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