A simple Lewis acid induced reaction of phenols with electrophiles: Synthesis of functionalized 4<i>H</i>-chromenes and <i>ortho</i>-benzylphenols
作者:Chinnabattigalla Sreenivasulu、Ditto Abraham Thadathil、Sumit Pal、Satyanarayana Gedu
DOI:10.1080/00397911.2019.1689268
日期:2020.1.2
Abstract Lewisacid ZnCl2 promoted cyclization protocol to 4H-chromenes is accomplished, using readily available phenols and acetophenones as starting materials. Interestingly, the process is feasible under the solvent free environment. Synthesis of a variety of 4H-chromenes have been accomplished using this strategy. In addition, this concept is extended to the synthesis of ortho-benzylphenols by
2-(1,3-Diazacycloalkenyl)-2-hydrazones of substituted chalcones
申请人:American Cyanamid Company
公开号:US03931152A1
公开(公告)日:1976-01-06
The preparation of 2-(1,3-Diazacycloalkenyl)-2-hydrazones of substituted chalcones is described. These compounds are useful as anti-tubercular agents in warm-blooded animals.
VSHIVKOV, A. A.;GAEVA, N. V.;GARTMAN, G. A.;TOLSTYX, G. E., IZV. VUZOV. XIMIYA I XIM. TEXNOL., 1984, 27, N 6, 647-653
作者:VSHIVKOV, A. A.、GAEVA, N. V.、GARTMAN, G. A.、TOLSTYX, G. E.
DOI:——
日期:——
Unit Comprising Porous Organic Polymers and Use Thereof l
申请人:Böhringer Bertram
公开号:US20140162872A1
公开(公告)日:2014-06-12
The invention relates to a unit which comprises a multitude of particles based on porous organic polymers, wherein the organic polymers are obtainable by poly(acetylcyclotrimerization) of polyacetyl-functionalized or polyacetylated aromatics and/or polyacetyl-functionalized or polyacetylated polycycles, and to the different uses or possible applications of this unit.