Recently I am researching about DIELS-ALDER REACTIONS; ALPHA,BETA-UNSATURATED IMINES; TANDEM REACTION; 1,2,3-TRIAZOLES; TRANSANNULATION; CYCLOADDITION; 2H-AZIRINES; ANNULATION; ALKYNES; 1-SULFONYL-1,2,3-TRIAZOLES, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21801224]; Natural Science Foundation of Zhejiang provinceNatural Science Foundation of Zhejiang Province [LQ18B020009]; Scientific Research Foundation of Zhejiang Sci-Tech University [16062193-Y]. Published in PERGAMON-ELSEVIER SCIENCE LTD in OXFORD ,Authors: Xu, ZF; An, YH; Chen, YD; Duan, SG. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid. Quality Control of 4-Nitrobenzoic acid
A new synthetic application of N-sulfonyl-1,2,3-triazoles acting as a 1-aza-[4C] synthon via the 1,2-shift reaction of an alpha-imine rhodium carbene was developed for the synthesis of fused pyrimidine derivatives. The high reactivity of the strained three-membered 2H-azirine ring facilitated the unusual cyclization of electron-deficient dienes with electron-deficient dienophiles. The compatibility was good with common functionalities tolerated. Excellent chemoselectivity was observed, and no reactions occurred between the rhodium carbene and 2H-azirine. The products could be converted into seven-membered multi-functionalized 1H-1,4-diazepine derivatives, illustrating the potential application of the protocol in medium-sized N-heterocycle synthesis. (C) 2019 Elsevier Ltd. All rights reserved.
Quality Control of 4-Nitrobenzoic acid. Welcome to talk about 62-23-7, If you have any questions, you can contact Xu, ZF; An, YH; Chen, YD; Duan, SG or send Email.
Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem