Ligand-Enabled Gold-Catalyzed C(sp<sup>2</sup>)–N Cross-Coupling Reactions of Aryl Iodides with Amines
作者:Manjur O. Akram、Avishek Das、Indradweep Chakrabarty、Nitin T. Patil
DOI:10.1021/acs.orglett.9b03082
日期:2019.10.4
example of ancillary (P,N)-ligand-enabled gold-catalyzed C-N cross-couplingreactions of aryl iodides with amines is reported. The high generality of the reaction in de novo synthesis, late-stage modifications, and cascade processes to access functionalized indolinones and carbazoles underscores the synthetic potential of the presented strategy. Monitoring the reaction with ESI-HRMS and NMR provided strong
Verfahren zur Herstellung von Nitrodiphenylamin-Derivaten
申请人:BAYER AG
公开号:EP0011790A1
公开(公告)日:1980-06-11
Die Erfindung betrifft ein Verfahren zur Herstellung von Nitrodiphenylamin-Derivaten, bei dem ein gegebenenfalls substituiertes Nitrophenol mit einem gegebenenfalls substituierten aromatischen Isocyanat in Gegenwart einer Base im Temperaturbereich von 100 bis 250°C in Tetramethylensulfon umgesetzt wird.
Tetrazolylcoumarin derivatives, process for preparing the same and composition containing the same
申请人:Kaken Pharmaceutical Co., Ltd.
公开号:EP0039913A1
公开(公告)日:1981-11-18
Tetrazolylcoumarin derivatives of the general formula:
wherein R is hydrogen atom, an alkyl group, an alkenyl group, an alkoxyalkyl group or phenyl group, n is an integer of 2 to4, and the R-O-(CH2)n-O- group is substituted at any of the 5,6,7, and 8 positions of the coumarin ring, and the salts thereof. The compounds are useful as antiallergic agents for preventing and treating allergic diseases.