Detail of "273-77-8"

Reference

Reaction of 1,2,3-benzothiadiazoles with radicophilic alkenes and alkynes in di-tert-butyl peroxide

Reaction of 1,2,3-benzothiadiazoles with radicophilic alkenes and alkynes in di-tert-butyl peroxide. Albertazzi, A.; Leardini, R.; Pedulli, G. F.; Tundo, A.; Zanardi, G. (Ist. Chim. Org., Univ. Bologna, Bologna 40136, Italy). J. Org. Chem., 49(23), 4482-6 (English) 1984. There are some commonly used reagents like 92014-02-3 in this article. CODEN: JOCEAH. ISSN: 0022-3263. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) Section cross-reference(s): 28 1,2,3-Benzothiadiazoles I (R = H, Cl, OMe) reacted with radicophilic alkenes R1R2C:CH2 (R1 = R2 = Ph, R1 = BuS, R2 = cyano) and alkynes PhCYCR3 (R3 = H, Ph) in (Me3CO)2 to give cycloadducts II-IV. The mechanism involves an initial attack by Me3CO× at the S atom of I to give the radical intermediate V which is responsible for the formation of all of the reaction products. .

Thermal decomposition of 1,2,3-benzothiadiazole

Thermal decomposition of 1,2,3-benzothiadiazole. Benati, Luisa; Montevecchi, Pier C.; Zanardi, Giuseppe (Ist. Chim. Org., Univ. 230-26-2 and 273-77-8 are cas registry numbers. These chemicals are also mentioned in this article. Bologna, Bologna, Italy). J. Org. Chem., 42(3), 575-7 (English) 1977. CODEN: JOCEAH. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 22 Themolysis of 1,2,3-benzothiadiazole in EtOAc at 220.degree. for 18 hr gave thianthrene, dibenzo[c,e]-o-dithiin, dibenzothiophene, and PhSH. Decompn. in PhMe or BzOMe gave, besides products described above, a mixt. of 1-, 2-, 3- and 4-methyl- and 1-, 2-, 3- and 4-methoxycarbonyldibenzothiophene (I). The relative yields of I agree better with a radical mechanism rather than a ionic one; the intermediacy of a 1,3-diradical species (II) was postulated. The intervention of a benzothiirene as reaction intermediate was also excluded, because decompn. of 6-methoxy-1,2,3-benzothiadiazole gave only 2,7-dimethoxythianthrene (III) instead of a mixt. of III and 2,8-dimethoxythianthrene. Some data on the reactivity of II with C-C triple bonds were also reported. .