摘要 本文成功地将磷酸二苯酯肌酸固定在Fe 3 O 4纳米颗粒上,并用作5-取代四唑与α,β-不饱和羰基的氮杂-迈克尔反应的高效催化剂。通过傅立叶变换红外光谱(FT-IR),场发射扫描电子显微镜(FE-SEM),振动样品磁强计(VSM),热重分析(TGA)和X射线等各种技术对制备的纳米催化剂进行了全面分析。衍射(XRD)。该方法具有许多优点,例如后处理简单,产率高和反应时间短。 图形摘要 本文讨论了一种 通过 四氢呋喃合成取代四唑的方法 Fe 3 O 4 @磷酸二苯酯肌酸纳米颗粒作为新型催化剂的aza-Michael反应。
CuFe2O4Nanoparticle Mediated Method for the Synthesis of 5-Substituted 1H-Tetrazoles from (E)-Aldoximes
作者:Ravi Kumar Akula、Chandra S. Adimulam、Sathaiah Gangaram、Raju Kengiri、Narsaiah Banda、Shanthan R. Pamulaparthy
DOI:10.2174/1570178611666140210213157
日期:2014.4
A strategy for the synthesis of 5-substituted 1H-tetrazoles from various (E)-aldoximes and sodium azide was
adopted using copper ferrite nanoparticles as a reusable catalyst.
Coupling of <i>N</i>-tosylhydrazones with tetrazoles: synthesis of 2-β-<scp>d</scp>-glycopyranosylmethyl-5-substituted-2<i>H</i>-tetrazole type glycomimetics
作者:Tímea Kaszás、Ivett Cservenyák、Éva Juhász-Tóth、Andrea E. Kulcsár、Paola Granatino、Ulf J. Nilsson、László Somsák、Marietta Tóth
DOI:10.1039/d0ob02248a
日期:——
The first tosylhydrazone-tetrazole coupling provides a straightforward access to a new type of glycomimetics with exclusive regioselectivity.
Conversion of Arylboronic Acids to Tetrazoles Catalyzed by ONO Pincer-Type Palladium Complex
作者:Arumugam Vignesh、Nattamai S. P. Bhuvanesh、Nallasamy Dharmaraj
DOI:10.1021/acs.joc.6b02277
日期:2017.1.20
A convenientsynthesis of a library of tetrazoles through a novel and operationally simple protocol effecting the direct conversion of arylboronic acids catalyzed by a new ONO pincer-type Pd(II) complex under mild reactionconditions using the readily available reagents is reported. The palladium complex was reused up to four cycles in an open-flask condition.
Novel ligands for the hisb10 zn2+ sites of the r-state insulin hexamer
申请人:——
公开号:US20030229120A1
公开(公告)日:2003-12-11
Novel ligands for the HisB10 Zn
2+
sites of the R-state insulin hexamer that are capable of prolonging the action of insulin preparations are disclosed.
A novel method for the synthesis of 5-substituted 1H-tetrazoles using diphenyl phosphorazidate (DPPA) has been developed. Aromatic and aliphatic aldoximes underwent cycloaddition to afford the corresponding 5-substituted 1H-tetrazoles with ease and efficiency.