Sentence examples for strained ring from inspiring English sources

O-Tethered 1,6-enynes 172 that contain a strained ring react with gold(I) by cycloisomerization followed by a 1,2-alkyl carbocationic shift resulting in ring expansion (Scheme 52).

The presence of their unique strained ring structures confers physical and chemical properties characteristic of unsaturated fatty acids with the oxidative stability displayed by saturated fatty acids making them of considerable industrial interest.

In addition, a previously compiled bad list for organic compounds in aqueous solution (Meringer et al., 2013) and a preloaded bad list that excludes highly strained ring systems are used, rings of size 3 and 4 are forbidden, and Cl being connected to a carbon atom is prescribed.

In contrast to azide- and alkyne-containing analogues that require Cu(I) or synthetically complex strained-ring reagents for their subsequent derivatization, aldehydye-based compounds can be easily functionalized with commercially available hydrazine- or alkoxyamine-containing moieties.

The bond distances for the nicotinamide rings are well-estimated and are most consistent with a strained, oxidized ring with modest puckering, as described previously for the complexes of the wild-type enzyme.

Also, it was observed that during solid-state stability studies of carbapenem analogs different degradants were formed during thermolysis as a consequence of the highly strained fused ring system [21, 22].

To this end, we chose to examine the direct conversion of propargyl alcohols to oxetan-3-ones (Scheme 7) because the highly strained small ring in the products permits reasonable exclusion of other potential mechanism alternatives.

Initial interest in the unique structural and physical properties of these strained heterocyclic ring compounds became overshadowed in the 1980s by the recognition that electron-deficient oxaziridines could be convenient, bench-stable, neutral sources of electrophilic oxygen.

These strained siloxane rings are normally introduced by applying a force or vacuum treatment of silica at temperatures as high as 800 °C.

With increase in β-CD CA concentration in aqueous media, the restriction to the solubility increased due to the increased number of strained cyclodextrin rings.

Moreover, X-ray analysis suggested that compound 6 could be a reactive precursor, considering the presence of strained cyclohexane rings; the geometry of which is nearly planar and presented internal bond angles between 113.9 7)° and 124.6 8)° [27].