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

Tertiary cyanoacetylenic alcohols 1 reacting with 3-aminobenzoic acid (Et3N, MeCN, 20-25 °C, 28-30 h) afforded 5,5-dialkyl-2-(3-aminophenyl)-4-oxo-4,5-dihydrofuran-3-carbonitriles 2 (77- 85%). Under the same condition, 4-hydroxy-4-methylpent-2-ynenitrile 1a and 2-aminobenzoic acid gave 2-((5-iminio-2,2-dimethyl-2,5-dihydrofuran-3-yl)amino)benzoate 4 (39%). With 4- aminobenzoic acid, alcohol 1a was almost quantitatively converted into the ester 5.

arkivoc

Peculiarities of the tandem reaction between cyanoacetylenic alcohols and aminobenzoic acids: Synthesis of 5,5-dialkyl-2-(3-aminophenyl)-4-oxo-4,5-dihydrofuran-3-carbonitriles