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Polycyclic compound

About: Polycyclic compound is a research topic. Over the lifetime, 1439 publications have been published within this topic receiving 31551 citations. The topic is also known as: polycyclic compounds.


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Journal ArticleDOI
TL;DR: In this article, the enthalpies of formation for various Lewis acid complexes with representative unsaturated compounds (aldehydes, imines, alkynes, and alkenes) provide a means to evaluate the applicability of a particular catalyst in a catalytic reaction.
Abstract: Computed enthalpies of formation for various Lewis acid complexes with representative unsaturated compounds (aldehydes, imines, alkynes, and alkenes) provide a means to evaluate the applicability of a particular catalyst in a catalytic reaction. As expected, main group Lewis acids such as BX3 show much stronger complexes with heteroatoms than with carbon−carbon multiple bonds (σ-electrophilic Lewis acids). Gold(I) and copper(I) salts with non-nucleophilic anions increase the relative strength of coordination to the carbon−carbon multiple bonds (π-electrophilic Lewis acids). As representative examples for the use of σ-electrophilic Lewis acids in organic synthesis, the Lewis acid mediated allylation reactions of aldehydes and imines with allylic organometallic reagents which give the corresponding homoallyl alcohols and amines, respectively, are mentioned. The allylation method is applied for the synthesis of polycyclic ether marine natural products, such as hemibrevetoxin B, gambierol, and brevetoxin B. A...

341 citations

Journal ArticleDOI
TL;DR: In this article, the thermodynamique chimique de molecules d'hydrocarbures de 1500° a 3000°K for the especes C 2n H 2m (n=1-21, m = 1-8)
Abstract: Analyse thermodynamique chimique de molecules d'hydrocarbures de 1500° a 3000°K pour les especes C 2n H 2m (n=1-21, m=1-8)

316 citations

Journal ArticleDOI
TL;DR: The first examples of circularly polarized luminescence from chiral bridged triarylamine-based heterohelicene molecules are reported.
Abstract: The first examples of circularly polarized luminescence from chiral bridged triarylamine-based heterohelicene molecules are reported. The luminescence dissymmetry factors are ∼|0.001|.

307 citations

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20223
20218
202023
201910
201816
20176