Results 61 to 70 of about 28,644 (231)

Diastereoselective Synthesis of C60/Steroid Conjugates [PDF]

, 2013
The design and synthesis of fullerene–steroid hybrids by using Prato’s protocol has afforded new fullerene derivatives endowed with epiandrosterone, an important naturally occurring steroid hormone.
Ajamaa F., Alberto Ruiz, An Y., Beck M. T., Bjelakovic M. S., Campidelli S., Coro J., Da Ros T., Dolores Molero, Doss S. H., Echegoyen L. E., Eliel E. L., Enrique E. Maroto, Filippone S., Florent Di Meo, Fong R., Grimme S. J., Grimme S. J., Grimme S. J., Guldi D. M., Gupte S. A., Hirsch A., Illescas B., Illescas B. M., Ioutsi V. A., Ishi-I T., Itoh T., José A. Ruiz, Juan Carlos Sancho-García, Julieta Coro, Li L., Luis Almagro, Maggini M., Margarita Suárez, Maroto E., Maroto E. E., Maroto E. E., Martín N., Martín N., María Ángeles Herranz, Merlani M. I., Nazario Martín, Neese F., Novello F., Pantarotto D., Prato M., Raeside J. I., Reyes-Moreno M., Reyes-Moreno M., Roberto Martínez-Álvarez, Salvatore Filippone, Sawai K., Schuster D. I., Schwabe T., Tan X., Wilson S. R.   +55 more
core   +2 more sources

An Efficient Synthesis of Novel Dispirooxindole Derivatives via One-Pot Three-Component 1,3-Dipolar Cycloaddition Reactions

Molecules, 2012
A series of novel dispirooxindoles have been synthesized through three-component 1,3-dipolar cycloaddition of azomethine ylides generated in situ by the decarboxylative condensation of isatin and an α-amino acid with the dipolarophile 5-benzylidene-1,3 ...
Yucheng Wang, Juxian Wang, Hongtao Liu, Huiyuan Wang, Wei Lin, Lexing Xu, Zhibin Huang, Gang Chen, Qian Zhao, Daqing Shi   +9 more
doaj   +1 more source

A simple two-step synthesis of 2-(alkylamino)-1-arylethanols, including racemic adrenaline, from aromatic aldehydes via 5-aryloxazolidines [PDF]

, 2013
Benzaldehydes react smoothly with nonstabilized azomethine ylides, generated in situ from sarcosine/formaldehyde or N-(methoxymethyl)-N- (trimethylsilylmethyl)benzylamine, to give 5-aryloxazolidines as intermediates.
Moshkin, V. S., Sosnovskikh, V. Y.
core   +1 more source

Synthesis, Photophysical, and Chemiexcitation Properties of Luminol‐Fullerene Dyads: Toward Chemiexcitation Electron Transfer

Chemistry – A European Journal, EarlyView.
The emission properties of fullerene‐luminol dyads, following either irradiation or chemiexcitation, are evaluated. Strong luminol (chemi)luminescence quenching is partially attributed to electron transfer. Abstract Fullerene‐based donor‐acceptor (D‐A) dyads have been extensively studied for their unique electronic properties, with applications in ...
Theodoros Mikroulis, Gemma M. Rodríguez‐Muñiz, Demeter Tzeli, Georgios Rotas, Miguel A. Miranda, Georgios C. Vougioukalakis   +5 more
wiley   +1 more source

Stereoselective Synthesis of the Di-Spirooxindole Analogs Based Oxindole and Cyclohexanone Moieties as Potential Anticancer Agents

Molecules, 2021
A new series of di-spirooxindole analogs, engrafted with oxindole and cyclohexanone moieties, were synthesized. Initially, azomethine ylides were generated via reaction of the substituted isatins 3a–f (isatin, 3a, 6-chloroisatin, 3b, 5-fluoroisatin, 3c ...
Abdullah Mohammed Al-Majid, M. Ali, Mohammad Shahidul Islam, Saeed Alshahrani, Abdullah Saleh Alamary, Sammer Yousuf, M. Iqbal Choudhary, Assem Barakat   +7 more
doaj   +1 more source

Ethyl 1-benzyl-1,2,3,3a,4,10b-hexa-hydro-pyrrolo-[2',3':3,4]pyrrolo-[1,2-a]benzimidazole-2-carboxyl-ate. [PDF]

, 2011
The title mol-ecule, C(22)H(23)N(3)O(2), was obtained via an intra-molecular cyclo-addition of an azomethine ylide and an alkene tethered by a benzimidazole unit. The benzoimidazole unit is essentially planar, with an r.m.s.
Fettinger, James C, Kurth, Mark J, Meng, Liping   +2 more
core   +2 more sources

A one-pot synthesis of tetrahydroisoquinolin-4-ols via a novel acid-catalyzed rearrangement of 5-aryloxazolidines [PDF]

, 2013
Benzaldehydes with electron-donating substituents react smoothly with a nonstabilized azomethine ylide derived from sarcosine and formaldehyde to form 5-aryloxazolidines as intermediates, which undergo rearrangement into 2-methyl-1,2,3,4 ...
Moshkin, V. S., Sosnovskikh, V. Y.
core   +1 more source

The regioselective synthesis of spirooxindolo pyrrolidines and pyrrolizidines via three-component reactions of acrylamides and aroylacrylic acids with isatins and α-amino acids

Beilstein Journal of Organic Chemistry, 2014
The regioselective three-component condensation of azomethine ylides derived from isatins and α-amino acids with acrylamides or aroylacrylic acids as dipolarophiles has been realized through a one-pot 1,3-dipolar cycloaddition protocol.
Tatyana L. Pavlovskaya, Fedor G. Yaremenko, Victoria V. Lipson, Svetlana V. Shishkina, Oleg V. Shishkin, Vladimir I. Musatov, Alexander S. Karpenko   +6 more
doaj   +1 more source

Fused Nitrogen Bridgehead N,O‐Acetals as Versatile Scaffolds: Synthetic Strategies, Mechanism and Applications

Chemistry – A European Journal, Volume 31, Issue 32, June 6, 2025.
Fused nitrogen‐bridgehead N,O‐acetals receive specific emphasis as pivotal scaffolds due to their significant role in the bioactivity of medicinally relevant molecules. Significant approaches have been reported on their role as key synthetic building blocks/motifs in the construction of complex organic molecules and their utility as chiral auxiliaries ...
Alexis D. Kouvelas, Michael G. Kallitsakis, Ioannis N. Lykakis   +2 more
wiley   +1 more source

Multicomponent synthesis of spiropyrrolidine analogues derived from vinylindole/indazole by a 1,3-dipolar cycloaddition reaction

Beilstein Journal of Organic Chemistry, 2016
A new series of spiropyrrolidine compounds containing indole/indazole moieties as side chains have been accomplished via a one-pot multicomponent synthesis.
Manjunatha Narayanarao, Lokesh Koodlur, Vijayakumar G. Revanasiddappa, Subramanya Gopal, Susmita Kamila   +4 more
doaj   +1 more source