Results 91 to 100 of about 4,067 (210)

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
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The concept of Gallium-controlled double C–H functionalization of aliphatic CH2-groups driven by Vinyl carbocations

Nature Communications
The direct C–H activation of inert C(sp3)–H bonds in a hydrocarbon chain has been a very attractive target in organic synthesis for many decades. Among all the variety of processes, those driven by vinyl carbocations are quite scarce thus far, and it is ...
Roman A. Novikov, Denis D. Borisov, Dmitry A. Denisov, Maxim A. Novikov, Konstantin V. Potapov, Yaroslav V. Tkachev, Yury V. Tomilov   +6 more
doaj   +1 more source

1,3-Difunctionalization of [1.1.1]propellane through iron-hydride catalyzed hydropyridylation

Nature Communications
Current methodologies for the functionalization of [1.1.1]propellane primarily focus on achieving 1, 3-difunctionalized bicyclo[1.1.1]pentane or ring-opened cyclobutane moiety. Herein, we report an innovative approach for the 1, 3-difunctionalization of [
Changha Kim, Yuhyun Kim, Sungwoo Hong
doaj   +1 more source

Transannular Claisen Rearrangements of α-Sulfonyl Lactones

, 2009
This thesis is divided into three sections. Section one is a review of transannular pericyclic reactions. It covers the four main types of pericyclic reaction and major contributions in the field to date.
Gore, Sophie, Gore, Sophie
core   +1 more source

Mechanochemistry of cyclobutanes

Science China Chemistry
AbstractThe field of polymer mechanochemistry has been revolutionized by implementing force-responsive functional groups—mechanophores. The rational design of mechanophores enables the controlled use of force to achieve constructive molecular reactivity and material responses.
Roberto Obregon, Junpeng Wang
openaire   +1 more source

Efeito da sibutramina na redução do peso e no perfil metabólico em indivíduos obesos de uma população brasileira

Revista de Ciências Farmacêuticas Básica e Aplicada, 2010
O objetivo deste trabalho é avaliar a eficácia e a segurança da dose de 20 mg/dia de sibutramina em voluntários obesos, com IMC superior a 35, e compará-las com a dose de 10 mg/dia e à mudança de estilo de vida de pacientes com IMC inferior a 35 (a ...
Carlos Alberto Menezes, Fabrício Rios-Santos, Alex Marques Borges Santos, Maria Eliane Alves de Souza, Giuliano Di Pietro   +4 more
doaj  

Ring expansion of cyclobutylmethylcarbenium ions to cyclopentane or cyclopentene derivatives and metal-promoted analogous rearrangements [PDF]

, 2011
D'hooghe, Matthias, De Kimpe, Norbert, Leemans, Erika   +2 more
core   +1 more source

Stepwise [2 + 2] and [3 + 2] "cycloaddition" reactions of allenyl cations with olefins [PDF]

, 1981
Halberstadt-Kausch, Inge K., Mayr, Herbert, Seitz, Brigitte   +2 more
core   +1 more source

Cyclobutanes [PDF]

Chemical & Engineering News Archive, 2014
openaire   +1 more source

Syntheses of Isoxazoline-Based Amino Acids by Cycloaddition of Nitrile Oxides and Their Conversion into Highly Functionalized Bioactive Amino Acid Derivatives [PDF]

, 2012
The present account illustrates the syntheses of isoxazoline- based amino acids by the cycloaddition of 1,3-dipolar nitrile oxides to the C–C double bond of unsaturated amino acid derivatives, with focus on the regio- and stereoselectivities of the ...
Fülöp, Ferenc, Kiss, Loránd, Nonn, Melinda   +2 more
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