Results 231 to 240 of about 117,983 (293)
Organo-catalyzed photoelectrochemical ring-contraction of arylidenecyclobutanols <i>via</i> radical cation-triggered semipinacol rearrangement. [PDF]
Chem SciZheng Y +5 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Chemical Reviews, 2016
Cycloadditions are among the most efficient chemical processes, combining atom economy, stereospecificity, and the ability to generate molecular complexity in a single step. Aromatic rings would in principle be ideal reaction partners, as they contain, at least from the topological point of view, both olefinic and diene subunits; however, the stability
Richard Remy, Christian G Bochet
exaly +3 more sources
Cycloadditions are among the most efficient chemical processes, combining atom economy, stereospecificity, and the ability to generate molecular complexity in a single step. Aromatic rings would in principle be ideal reaction partners, as they contain, at least from the topological point of view, both olefinic and diene subunits; however, the stability
Richard Remy, Christian G Bochet
exaly +3 more sources
2017
The α-C–H functionalization of piperidine catalyzed by tantalum complex 1 to produce amine 2 was developed (Org. Lett. 2013, 15, 2182) by Laurel L. Schafer at the University of British Columbia. An asymmetric diamination of diene 3 with diaziridine reagent 4 under palladium catalysis to furnish cyclic sulfamide 5 was developed (Org. Lett.
Allison K. Griffith, Tristan H. Lambert
openaire +1 more source
The α-C–H functionalization of piperidine catalyzed by tantalum complex 1 to produce amine 2 was developed (Org. Lett. 2013, 15, 2182) by Laurel L. Schafer at the University of British Columbia. An asymmetric diamination of diene 3 with diaziridine reagent 4 under palladium catalysis to furnish cyclic sulfamide 5 was developed (Org. Lett.
Allison K. Griffith, Tristan H. Lambert
openaire +1 more source
Nature Reviews Chemistry, 2021
The seminal paper by Yves Chauvin and Jean-Louis Herisson on the mechanism of alkene metathesis is elegant, simple and insightful. Published more than 50 years ago, it deserves appreciation and admiration even today.
openaire +2 more sources
The seminal paper by Yves Chauvin and Jean-Louis Herisson on the mechanism of alkene metathesis is elegant, simple and insightful. Published more than 50 years ago, it deserves appreciation and admiration even today.
openaire +2 more sources
Chemistry – A European Journal, 2008
AbstractSilylmetalation of alkenes is challenging due to the low reactivity of the substrates. In contrast, carbometalation of alkenes has been realized through several innovative methods, including activation of the reagent and the substrate. A similar approach could be applicable to silylmetalation of alkenes, and we have recently developed a bimetal
Shinji, Nakamura +2 more
openaire +2 more sources
AbstractSilylmetalation of alkenes is challenging due to the low reactivity of the substrates. In contrast, carbometalation of alkenes has been realized through several innovative methods, including activation of the reagent and the substrate. A similar approach could be applicable to silylmetalation of alkenes, and we have recently developed a bimetal
Shinji, Nakamura +2 more
openaire +2 more sources
2020
Visualising molecules in 3D is hard. Fortunately, chemists use quite a few of the important stereochemical concepts and terms to describe the shapes of more 2D molecules, like alkenes. So, even if you really came to this book to learn about chirality and conformations in molecules with sp3 carbon atoms, we suggest you venture first into the sp2 world ...
openaire +1 more source
Visualising molecules in 3D is hard. Fortunately, chemists use quite a few of the important stereochemical concepts and terms to describe the shapes of more 2D molecules, like alkenes. So, even if you really came to this book to learn about chirality and conformations in molecules with sp3 carbon atoms, we suggest you venture first into the sp2 world ...
openaire +1 more source
1996
This chapter considers the relations between alkanes, alkenes, and alkynes, noting that the first general characteristic of alkenes and alkynes is their tendency to be attacked by electrophiles. It mentions that the spherical s orbital of C may be regarded as near to the positive nucleus, while the pear-shaped p orbital may be considered as farther ...
openaire +1 more source
This chapter considers the relations between alkanes, alkenes, and alkynes, noting that the first general characteristic of alkenes and alkynes is their tendency to be attacked by electrophiles. It mentions that the spherical s orbital of C may be regarded as near to the positive nucleus, while the pear-shaped p orbital may be considered as farther ...
openaire +1 more source
Highly Efficient Alkene-Alkene and Arene-Alkene Coupling Reactions with Vicinal Dibromides
Synlett, 1990Palladium-catalyzed twofold coupling reactions of 1,2-dibromocycloalkenes 4, 7 with alkenes 2 give high yields of (E,Z,E)-1.3,5-hexatrienes 5, 8 which thermally cyclize to ringannulated 1,3-cyclohexadienes 6, 9. Two-, three- and fourfold Heck type coupling reactions were also achieved with vicinal di-13, tri- 16, and tetrabromobenzene 18 under ...
Annegret Lansky +2 more
openaire +1 more source