STUDIES ON ORGANOPHOSPHORUS COMPOUNDS PART VIII. 1 THE ACTION OF 1,3,2,4-DITHIADIPHOSPHETANE-2,4-DISULFIDES ON BENZILMONOANILS. NOVEL SYNTHESIS OF 4,5-DIPHENYL δ 4 -1,3,2-THIAZAPHOSPHOLINE-2-SULFIDE DERIVATIVES
✍ Scribed by Shabana, R.; Mahran, M. R.; Hafez, T. S.
- Book ID
- 120183550
- Publisher
- Informa UK (Taylor & Francis)
- Year
- 1987
- Weight
- 249 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0308-664X
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It is well known that 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane 2,4-disulfide, 1, is a most effective thiation reagent for ketones." carboxamides ,'-' esters,' 1 ' ' -S-subst itu ted thloesters,e enaminones , I ' lactams," and Yand 6-lactones." In our attempts to transform @-propiolacton
## 1, 3, 2, fide 1 reacts with substituted 2-amino-1,4-naphthoquinons 2a-d to give 4,5,4Ј,5Ј-benzodiphenoquinonebis-1,3,2-thiazaphospholine-2-sulfide derivatives of type 3. Compatible analytical and spectroscopic results were obtained for all the new compounds. A mechanism is proposed to explain t