Sentence examples for intermolecular cycloaddition from inspiring English sources

Intermolecular cycloaddition strategies have also been used successfully.

Oxidative dearomatization, intermolecular cycloaddition of spiroepoxycyclohexa-2,4-dieone with ethyl acrylate, and intramolecular inverse demand π4s+π2s cycloaddition are the key features of our design.

The authors also established that intermolecular cycloadditions were possible with electron-deficient alkenes to give 5-substituted isoxazolidines.

Kitagaki, S. et al. Enantiocontrol in tandem carbonyl ylide formation and intermolecular 1,3-dipolar cycloaddition of α-diazo ketones mediated by chiral dirhodium(ii) carboxylate catalyst.

Novel fluconazole/bile acid conjugates were designed and their regioselective synthesis was achieved in very high yield via Cu(I) catalyzed intermolecular 1,3-dipolar cycloaddition.

Similar digold(i) complexes with phosphine ligands were detected in the intermolecular [2+2] cycloaddition of alkynes with alkenes.

A new synthesis of indoles 459 proceeds by formal gold(I -catalyzed I -catalyzedar [4 + 2] cycloaddintermolecular1,3-diynes and pyrroles (Scheme 150).

Herein we present a mechanistic study of the intermolecular [2+2] cycloaddition of alkynes with alkenes in order to understand the influence of the counterion on the reactivity of these processes.

Complex 110 is also formed in the intermolecular [2+2+2] cycloaddition of alkynes with oxoalkenes, leading to oxatricyclic products 111 (Scheme 35), a process mechanistically related to the intramolecular reaction of oxo-1,6-enynes (see Scheme 26).

The yield in the macrocyclization of 1,14-enyne 10 to form 13-membered derivative 11 was also improved from 57% using A1 to 82% with A2 (Scheme 3).[ 7] We also explored the influence of the counterion in the intermolecular [2+2+2] cycloaddition of alkynes with oxoalkene 6 to furnish 8-oxabicyclo[3.2.1]oct-3-enes 7a– d using A1 and A2.

Terminal alkynes and oxoalkenes undergo an analogous [2 + 2 + 2] cycloaddition reaction by intermolecular cyclization of the alkyne and the alkene followed by intramolecular attack of the carbonyl group to form 8-oxabicyclo[3.2.1]oct-3-enes 296 (Scheme 93).