Abstract
The crystal structures of the title compounds, (E)-stilbene-1-carboxylic acid, C15H12O2, (Ia), (E)-4′-methylstilbene-1-carboxylic acid, C16H14O2, (Ib), (E)-4′-chlorostilbene-1-carboxylic acid, C15H11ClO2, (Ic) and (Ic'), and (E)-4′-methoxystilbene-1-carboxylic acid, C16H14O3, (Id), have been determined. The chloro derivative shows polymorphism, with prisms, (Ic), being obtained from ether/hexane solution and needle crystals, (Ic'), being obtained from ethanol solution. The latter is isostructural with (Id). The selectivities of the products to the addition reaction of bromine are different, however, suggesting that the bromonium ion intermediate is stabilized by a resonance contribution of the p-MeO group.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Acta Crystallographica Section C Crystal Structure Communications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.