Synthesis of <i>N</i>-(Hetero)aryl Carbamates via CuI/MNAO Catalyzed Cross-Coupling of (Hetero)aryl Halides with Potassium Cyanate in Alcohols
作者:S. Vijay Kumar、Dawei Ma
DOI:10.1021/acs.joc.7b03175
日期:2018.3.2
to N-(hetero)aryl carbamates was developed through CuI/MNAO [2-((2-methylnaphthalen-1-yl)amino)-2-oxoacetic acid] catalyzed cross-coupling of (hetero)aryl chlorides with potassium cyanate in alcohols at 120–130 °C. This method utilizes broadly available substrates to afford various N-(hetero)aryl carbamates in good to excellent yields. Moreover, (hetero)aryl bromides and (hetero)aryl iodides were also
Chloroformate Free, Scalable Approach for the Synthesis of Organic Carbamates and Their Alkylation
作者:Mukesh P. Shewalkar、Ramakrishna R. Rao、Veerbhadra Reddy、Sunil N. Darandale、Devanand B. Shinde
DOI:10.2174/157017813805077280
日期:2013.1.1
A convenient method for the synthesis of organic carbamates of 2-aminopyridine without using hazardous chloroformate reagent is developed. This alternate approach for the synthesis of organic carbamates and their alkylation to 2-alkylaminopyridines is more practical and economical to be used on large scale. The amazing behavior of 2- aminopyridine helps in forming organic carbamates unlike 3-aminopyridine and 4-aminopyridine.
N-(BENZOYL)-O- [2- (PYRIDIN- 2 -YLAMINO) ETHYL]-L-TYROSINE DERIVATIVES AND RELATED COMPOUNDS AS A5B1 ANTAGONISTS FOR THE TREATMENT OF SOLID TUMORS
申请人:Astra Zeneca AB
公开号:EP2049490A1
公开(公告)日:2009-04-22
Dihydroxy (3-pyridyl) borane compounds
申请人:——
公开号:US20040254076A1
公开(公告)日:2004-12-16
A dihydroxy(3-pyridyl)borane compound of the formula (1):
1
wherein R
1
represents a hydrogen atom, halogen atom or alkoxycarbonylamino group; R
2
represents a hydrogen atom, halogen atom, alkyl group or fluoroalkyl group; and except that both R
1
and R
2
are hydrogen atoms.