First One-Pot Copper-Catalyzed Synthesis of α-Hydroxy-β-Amino Acids in Water. A New Protocol for Preparation of Optically Active Norstatines

2003 ◽  
Vol 68 (18) ◽  
pp. 7041-7045 ◽  
Author(s):  
Francesco Fringuelli ◽  
Ferdinando Pizzo ◽  
Mauro Rucci ◽  
Luigi Vaccaro
Keyword(s):  
ChemInform ◽  
2004 ◽  
Vol 35 (3) ◽  
Author(s):  
Francesco Fringuelli ◽  
Ferdinando Pizzo ◽  
Mauro Rucci ◽  
Luigi Vaccaro
Keyword(s):  

2004 ◽  
Vol 59 (4) ◽  
pp. 451-467 ◽  
Author(s):  
Marco Henneböhle ◽  
Pierre-Yves Le Roy ◽  
Matthias Hein ◽  
Rudolf Ehrler ◽  
Volker Jäger

AbstractA new approach to optically active N-methylamino acids is presented, relying on stereoselective reduction of N-methylisoxazolinium salts with a dioxyethyl side-chain. The diastereoselectivity of the reduction step is studied systematically, in comparison with that of respective isoxazolines. A two-step transformation of isoxazolinium salts - with NaBH3(OAc) and subsequent catalytic hydrogenation as well as a one-pot reduction by catalytic hydrogenation led to high (95:5 and 87:13) diastereomeric ratios of protected erythro-N-methylaminopentanetriols. The hydroxyethyl side-chain is elaborated by oxidation to afford the β -N-methylamino acid 37, exemplifying the potential of this strategy.


Synlett ◽  
2001 ◽  
Vol 2001 (10) ◽  
pp. 1653-1655 ◽  
Author(s):  
Giorgos Athanasellis ◽  
Efstathios Gavrielatos ◽  
Olga Igglessi-Markopoulou

ChemInform ◽  
2010 ◽  
Vol 33 (7) ◽  
pp. no-no
Author(s):  
Giorgos Athanasellis ◽  
Efstathios Gavrielatos ◽  
Olga Igglessi-Markopoulou

2021 ◽  
Author(s):  
Lamiaa Reda Ahmed ◽  
Ahmed F. M. EL-Mahdy ◽  
Cheng-Tang Pan ◽  
Shiao-Wei Kuo

In this paper, we describe the construction of a new fluorescent hydroxyl- and hydrazone-based covalent organic framework (TFPB-DHTH COF) through the one-pot polycondensation of 1,3,5-tris(4-formylphenyl)benzene (TFPB) and 2,5-dihydroxyterephthalohydrazide (DHTH) under...


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