2031-23-4Relevant academic research and scientific papers
Manganese-Catalyzed Anti-Markovnikov Hydroamination of Allyl Alcohols via Hydrogen-Borrowing Catalysis
Das, Kuhali,Sarkar, Koushik,Maji, Biplab
, p. 7060 - 7069 (2021/06/30)
Controlling the selectivity in a hydroamination reaction is an extremely challenging yet highly desirable task for the diversification of amines. In this article, a selective formal anti-Markovnikov hydroamination of allyl alcohols is presented. It enables the versatile synthesis of valuable γ-amino alcohol building blocks. A phosphine-free Earth's abundant manganese(I) complex catalyzed the reaction under hydrogen-borrowing conditions. A vast range of aliphatic, aromatic amines, drug molecules, and natural product derivatives underwent successful hydroamination with primary and secondary allylic alcohols with excellent functional group tolerance (57 examples). The catalysis could be performed on a gram scale and has been applied for the synthesis of drug molecules. The mechanistic studies revealed the metal-ligand bifunctionality as well as hemilability of the ligand backbone as the key design principle for the success of this catalysis.
4-substituted anilinoquinazoline derivatives, and preparation method and application thereof
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Paragraph 0044; 0045, (2017/01/31)
The invention discloses novel 4-substituted anilinoquinazoline derivatives or pharmaceutically acceptable salts thereof, or polymorphic substances, solvates or stereomers of the 4-substituted anilinoquinazoline derivatives, and a preparation method and application thereof. The 4-substituted anilinoquinazoline compounds have favorable inhibition activities for EGFR and VEGFR-2 in a biological test and have obvious effects in an in-vitro anti-human tumor cell proliferation activity test.
3-(INDOLYL)- OR 3-(AZAINDOLYL)-4-ARYLMALEIMIDE COMPOUNDS AND THEIR USE IN TUMOR TREATMENT
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Page/Page column 29; 30, (2011/07/07)
The present invention relates to a compound of formula (I) wherein R, R and R are as defined in the description and the physiologically acceptable salts thereof as well as the physiologically acceptable solvates of the compounds of formula I and of the salts thereof. The compounds of formula I are suitable for treating tumors
Nitro, amino and aroylamino-N-phenylpyridinamines in a process for preparing pyrido[1,4]benzodiazepines
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, (2008/06/13)
Nitro, amino and aroylamino-N-phenylpyridinamines as chemical intermediates and/or having antidepressant activity having the formula STR1 wherein R3 is nitro, amino or aroylamino, and Q is hydrogen, --NR1 R2 or halogen are disclosed in a process for preparing pyrido[1,4]benzodiazepines.
