منابع مشابه
Bridgehead vicinal diallylation of norbornene derivatives and extension to propellane derivatives via ring-closing metathesis
Here, we report a simple synthetic strategy to the bridgehead vicinal diallylation of norbornene derivatives. These substrates are useful to generate propellanes via ring-closing metathesis. Single-crystal X-ray diffraction analysis of four compounds led to the realization of configurational correction of earlier reported molecules.
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The first palladium-catalyzed dearomative cyclization via a modified Catellani-type C-H functionalization has been realized. The new strategy led to a series of spiroindolenine derivatives bearing an all-carbon quaternary spirocenter from simple aryl halides and substituted indoles.
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over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...
15 صفحه اولRegioselective ring-opening/cross-metathesis reactions of norbornene derivatives with electron-rich olefins.
This manuscript describes facile ring-opening/cross-metathesis (ROCM) reactions between unsymmetrical norbornene derivatives and electron-rich olefins in the presence of the second-generation Grubbs' catalyst to generate highly substituted furans and pyrroles.
متن کاملPalladium-catalyzed ring opening of norbornene: efficient synthesis of methylenecyclopentane derivatives.
The first palladium-catalyzed ring opening of norbornene to prepare methylenecyclopentane derivatives has been established. The process, which uses readily available aryl iodides, tosylhydrazones and norbornene as starting materials, likely takes place via tandem Heck-type coupling, palladium carbene migratory insertion, C-C bond cleavage and the β-hydride elimination pathway in a single synthe...
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ژورنال
عنوان ژورنال: Procedia Chemistry
سال: 2015
ISSN: 1876-6196
DOI: 10.1016/j.proche.2015.10.002