English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Sterically hindered silyl perchlorates were initially examined in hopes of finding evidence of a trivalent cationic silicon species or silylenium ion. Although our studies failed to uncover solid evidence of ionization, it was dis­ covered that these compounds had unique synthetic potential as silylating agents. All silyl perchlorates examined to date have been found to be highly reactive, relative to their halogenide counterparts, toward nucleophilic agents. t^Butyldimethylsilyl perchlorate offers a significant improvement over the widely used t-butyldimethylsilyl chloride in that it reacts readily with tertiary alcohols. The di-tbutylmethylsilyl moity, a heretofore unknown alcohol blocking group, was also examined and found to be dramatically more resistant to acidic and basic solvolysis than the t^butyldimethylsilyl group. The route to prepare the tri-t^butylsilylperchlorate, although successful, was found to be too arduous for the group to be of any synthetic utility in the pro­ tection of alcohols. Silyl perchlorates were found to react readily with carbanions. Di-t-butylfluorenyl silane prepared in this manner was used as a precursor to a sterically and electronically stabilized silene; however, attempts to effect the conversion failed. The reaction of silyl perchlorates with carbanions is of limited utility in the synthesis of sterically hindered

Sterically hindered silyl perchlorates: synthetic and mechanistic studies