多么一对!据报道,分子内 C(sp 3 ) N 偶联可提供氮杂环。该反应通过用碘氧化苄型 C,N-二价阴离子进行,并建立在合成天然产物 lyconadin A 期间的早期发现的基础上。目前的研究使用具有较低酸性 C H 键和较低活性氮亲核试剂的构象无偏底物. ZnCl 2被确定为一种重要的添加剂。
多么一对!据报道,分子内 C(sp 3 ) N 偶联可提供氮杂环。该反应通过用碘氧化苄型 C,N-二价阴离子进行,并建立在合成天然产物 lyconadin A 期间的早期发现的基础上。目前的研究使用具有较低酸性 C H 键和较低活性氮亲核试剂的构象无偏底物. ZnCl 2被确定为一种重要的添加剂。
This invention relates to novel compounds having the structural diagram (I) and to their pharmaceutical compositions and to their methods of use. These novel compounds provide a treatment or prophylaxis of cancer.
[EN] FOAMS AND ARTICLES MADE FROM FOAMS CONTAINING 1-CHLORO-3,3,3-TRIFLUOROPROPENE (HCFO-1233ZD)<br/>[FR] MOUSSES ET ARTICLES FABRIQUÉS À PARTIR DE MOUSSES CONTENANT DU 1-CHLORO-3,3,3-TRIFLUOROPROPÈNE (HFCO-1233ZD)
申请人:HONEYWELL INT INC
公开号:WO2012015887A2
公开(公告)日:2012-02-02
The present invention relates to poured-in place polyurethane foams and polyol premixes comprising 1-chloro-3,3,3-trifluoropropene (HFCO-1233zd) and one or more additional co-blowing agents.
[EN] STORAGE STABLE FOAMABLE COMPOSITIONS CONTAINING 1,1,1,4,4,4-HEXAFLUORO-2-BUTENE<br/>[FR] COMPOSITIONS POUVANT MOUSSER STABLES AU STOCKAGE CONTENANT DU 1,1,1,4,4,4-HEXAFLUORO-2-BUTÈNE
申请人:HONEYWELL INT INC
公开号:WO2014137969A1
公开(公告)日:2014-09-12
In certain non-limiting, aspects, the present invention relates to storage stable premixes of a polyol suitable for polyurethane or polyisocyanurate foam preparation having, at least, 1,1,1,4,4,4-hexafluoro-2-butene (1336mzzm) as the blowing agent and optional one or more additional additives and/or auxillary blowing agents in amounts suitable for polyurethane or polyisocyanurate foam preparation.
Intramolecular C(sp<sup>3</sup>)N Coupling by Oxidation of Benzylic C,N-Dianions
作者:Jenna L. Jeffrey、Emily S. Bartlett、Richmond Sarpong
DOI:10.1002/anie.201209591
日期:2013.2.18
azacycles is reported. This reaction proceeds through the oxidation of benzylic C,N‐dianions with iodine and builds on an earlier discovery during the synthesis of the natural product lyconadin A. The current study employs conformationally unbiased substrates with less acidic CH bonds and less reactive nitrogen nucleophiles. ZnCl2 was identified as an important additive.
多么一对!据报道,分子内 C(sp 3 ) N 偶联可提供氮杂环。该反应通过用碘氧化苄型 C,N-二价阴离子进行,并建立在合成天然产物 lyconadin A 期间的早期发现的基础上。目前的研究使用具有较低酸性 C H 键和较低活性氮亲核试剂的构象无偏底物. ZnCl 2被确定为一种重要的添加剂。