𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The cation exchange resin-promoted coupling of alkynes with aldehydes: one-pot synthesis of α,β-unsaturated ketones

✍ Scribed by J.S. Yadav; B.V. Subba Reddy; P. Vishnumurthy

Publisher
Elsevier Science
Year
2008
Tongue
French
Weight
194 KB
Volume
49
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis

Alkynes undergo smooth coupling with aldehydes in the presence of Amberlyst-15 Ò at room temperature to produce the corresponding a,b-unsaturated ketones in high yields with E-geometry. The use of an inexpensive, readily available, and recyclable cation exchange resin makes this method quite simple and convenient.

📜 SIMILAR VOLUMES

One-pot synthesis of α,β-unsaturated ket
One-pot synthesis of α,β-unsaturated ketones from tert-butyldimethylsilyldibromomethane and two different aldehydes
✍ Hiroshi Shinokubo; Koichiro Oshima; Kiitiro Utimoto 📂 Article 📅 1994 🏛 Elsevier Science 🌐 French ⚖ 262 KB

An addition of benzaldehyde to an ethereal solution of w-butyldimethylsilyldibromo methyllithium provided or-bromo-a-silyl ketone. Further treatment of the a-bmmoa-silyl ketone with butyllithium afforded enolate which provided g-hydroxya-silyl ketone upon treatment with aldehyde in ether. The enolat

Facile one pot thermal dehydration and d
Facile one pot thermal dehydration and dethioacetalization of β-hydroxydithioacetals with dimethyl sulphoxide : synthesis of α,β-unsaturated aldehydes
✍ Ch.Srinivasa Rao; M. Chandrasekharam; Balaram Patro; Hiriyakkanavar Ila; Hiriyak 📂 Article 📅 1994 🏛 Elsevier Science 🌐 French ⚖ 776 KB

Abstractz lhe acyclic and cyclic &&oxydithioarcrals 3u-m and lo-b obtained by sodium borohydride redudion (or Grignam' addition) of the corresponding &oxodithioacetals 2u-m arc shown to undergo facik one pot thermal &h#ration and dethioacetalization in the presenoz of dbnuhyl sulphoxide to &mi the c