CATALYTIC STUDY OF TITANIUM SILICATE MOLACULAR SIEVES IN THIOPHENE OXIDATION REACTION

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AGHABOZORG H.R.; SALEHIRAD F.A.; AGHABOZORG H.; MANOUCHEHRI M.

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Journal: JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY) Year:2002 | Volume:12 | Issue:45 Page(s): 3607-3620

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Title

CATALYTIC STUDY OF TITANIUM SILICATE MOLACULAR SIEVES IN THIOPHENE OXIDATION REACTION

Author(s)

AGHABOZORG H.R. | SALEHIRAD F.A. | AGHABOZORG H. | MANOUCHEHRI M. | Issue Writer Certificate

Keywords

TITANIUM SILICATEQ4

TS-2Q4

OXIDATION OF THIOPHENEQ4

Abstract

TS-2 is TITANIUM SILICATE molecular sieve with MEL structure. This material has received considerable interest, because of its remarkable catalytic properties particularly in oxidation reactions under mild reaction conditions. In this paper a heterogeneous catalytic method for the OXIDATION OF THIOPHENE to cycloaddition of thiophene- S-oxide with thiophene -S,S-dioxide has been developed. When thiophene is treated with hydrogen peroxide in water in the presence of a large amount of TS-2, the compound 3a,4, 7, 7a-tetrahydro-4,7-epithiobenzo [b] –thiophene 1, 1,8-trioxide (I) is produced as a pure product, While in the presence of a little amount of catalyst, product (I) and 3a, 4, 7, 7a- tetrahydro-4 ,7- epithiobenzo [b] thiophene 1,8-dioxide were produced. The IR, NMR and Mass spectra of products were in good agreement with the literature data. The mechanism involves a Diels-Alder dimerization of thiophene-S-oxide followed by a further oxidation of non bridging vinylic sulfoxide in the dimmer.

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APA: Copy

AGHABOZORG, H.R., SALEHIRAD, F.A., AGHABOZORG, H., & MANOUCHEHRI, M.. (2002). CATALYTIC STUDY OF TITANIUM SILICATE MOLACULAR SIEVES IN THIOPHENE OXIDATION REACTION. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), 12(45), 3607-3620. SID. https://sid.ir/paper/70584/en

Vancouver: Copy

AGHABOZORG H.R., SALEHIRAD F.A., AGHABOZORG H., MANOUCHEHRI M.. CATALYTIC STUDY OF TITANIUM SILICATE MOLACULAR SIEVES IN THIOPHENE OXIDATION REACTION. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)[Internet]. 2002;12(45):3607-3620. Available from: https://sid.ir/paper/70584/en

IEEE: Copy

H.R. AGHABOZORG, F.A. SALEHIRAD, H. AGHABOZORG, and M. MANOUCHEHRI, “CATALYTIC STUDY OF TITANIUM SILICATE MOLACULAR SIEVES IN THIOPHENE OXIDATION REACTION,” JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), vol. 12, no. 45, pp. 3607–3620, 2002, [Online]. Available: https://sid.ir/paper/70584/en

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