Results 121 to 130 of about 14,141 (248)

Synthesis of new enantiopure poly(hydroxy)aminooxepanes as building blocks for multivalent carbohydrate mimetics

open access: yesBeilstein Journal of Organic Chemistry, 2014
New compounds with carbohydrate-similar structure (carbohydrate mimetics) are presented in this article. Starting from enantiopure nitrones and lithiated TMSE-allene we prepared three 1,2-oxazine derivatives which underwent a highly stereoselective Lewis
Léa Bouché   +2 more
doaj   +1 more source

Michael Addition-Initiated Sequential Reactions from 1,3-Dicarbonyls for the Synthesis of Polycyclic Heterocycles

open access: yes, 2013
International audienceThis review aims to highlight the most significant recent developments on synthetic strategies involving consecutive, domino and multicomponent reactions featuring a Michael addition-initiating step for the synthesis of polycyclic ...
Bonne, Damien   +4 more
core   +3 more sources

Synthesis of some Dihydrobenz (1,3) oxazine Derivatives [PDF]

open access: green, 1970
P. B. Talukdar   +2 more
openalex   +1 more source

An Examination of Synthetic Routes to Papaverine, and, Synthetic Studies in 1:4 Oxazine Chemistry [PDF]

open access: yes, 1951
Part I - An Examination of Synthetic Routes to Papaverine. In an attempt to establish a new synthesis of the alkaloid papaverine, four possible routes were examined.
Dawson, William
core  

A Diversity-Oriented Synthesis Approach to Functionalized Azaheterocycles using Cyclic Alpha-Halo Eneformamides [PDF]

open access: yes, 2017
Functionalized piperidines, azepanes, azamacrocycles, morpholines, and thiomorpholines are common structural motifs found in a wide range of pharmaceuticals such as carmegliptine, levofloxacin, thioridazine, claviciptic acid, and azithomycin. As a result,
Langevin, Spencer A.
core   +1 more source

Regiodivergent formal [4+2] cycloaddition of nitrosoarenes with furanyl cyclopropane derivatives as 4p components [PDF]

open access: yes
The Spanish Government AEI (grants PID2019- 107469RBI00/AEI and PID2022-138232NB ...
Coto, Darío   +3 more
core   +1 more source

Thin Layer Chromatography of Azine and Oxazine Dyes [PDF]

open access: green, 1985
N. V. RAO   +3 more
openalex   +1 more source

Synthesis of Oxazines by Palladium Catalyzed Reductive Cyclization of Nitroarenes and Dienes Using Phenyl Formate as CO Surrogate [PDF]

open access: yes, 2018
The synthesis of hetero-Diels-Alder adducts derived from nitrosoarenes as dienophiles (oxazines) has been the focus of much attention in recent years, since these products have pharmacological activity themselves or can be easily transformed into other ...
D.R. Ramadan   +2 more
core  

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