A ‘sulfonyl-azide-free’ (SAFE) aqueous-phase diazo transfer reaction for parallel and diversity-oriented synthesis
作者:Dmitry Dar’in、Grigory Kantin、Mikhail Krasavin
DOI:10.1039/c9cc02042j
日期:——
Diazotransferreactions are notoriously associated with the use of potentially explosive sulfonyl azides. The first ‘sulfonyl-azide-free’ (SAFE) protocol for producing diazo compounds from their active-methylene precursors via the Regitz diazotransferreaction was developed and has displayed a remarkable substrate scope. It can be applied to generating arrays of diazo compounds for further evolution
Rh<sup>II</sup>
-Catalyzed Cycloaddition of α-Diazo Homophthalimides and Nitriles Delivers Oxazolo[5,4-<i>c</i>
]isoquinolin-5(4<i>H</i>
)-one Scaffold
作者:Grigory Kantin、Dmitry Dar'in、Mikhail Krasavin
DOI:10.1002/ejoc.201800955
日期:2018.9.23
The firstexample of 1,3‐oxazole synthesis involving nitrile cycloaddition to an α‐diazocarbonyl moiety incorporated in a heterocyclic system was shown. The resulting oxazolo[5,4‐c]isoquinolin‐5(4H)‐one scaffold represents a hitherto not described structural analog of an important cluster of tricyclic ringsystems for drug design.
显示了第一个1,3-恶唑合成的例子,涉及将腈环加成到杂环系统中的α-重氮羰基部分上。所得的恶唑并[5,4 – c ]异喹啉-5(4 H)-1支架代表了迄今为止尚未描述的用于药物设计的重要三环系统簇的结构类似物。
YAMAHARA, JOHJI;SAWADA, TOKUNOSUKE;FUJIMURA, HAJIME;OKAMOTO, MASAO, J. PHARM. SOC. JAP., 1985, 105, N 3, 249-255