𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The reaction of α,β-acetylenic ketones with dicyclohexylborane: Stereoselective synthesis of functionalized trisubstituted olefins

✍ Scribed by George W. Kabalka; Su Yu; Nan-Sheng Li; Ute Lipprandt


Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
187 KB
Volume
40
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


Allenoxyborinates, easily generated via the 1,4-addition of dicyclohexylborane to a,~acetylenic ketones, react in situ with excess starting ketone to afford stereodefined, functionalized trisubstituted olefins in high yields.


📜 SIMILAR VOLUMES


ChemInform Abstract: The Reaction of α,β
✍ George W. Kabalka; Su Yu; Nan-Sheng Li; Ute Lipprandt 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

The Reaction of α,β-Acetylenic Ketones with Dicyclohexylborane: Stereoselective Synthesis of Functionalized Trisubstituted Olefins. -α,β-Acetylenic ketones (I) (6 compounds) undergo 1,4-addition of dicyclohexylborane to give allenoxyborinate intermediates which react with excess starting ketone to

A Stereoselective Synthesis of (E)-α, β-
✍ Prof. Dr. Giuseppe Bartoli; Dr. Enrico Marcantoni; Prof. Dr. Marino Petrini; Dr. 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 735 KB

## Abstract Stereoselective construction of trisubstituted alkenes has wide applicability to the synthesis of many natural products Specifically, β‐disubstituted enones are important functionalized trisubstituted alkene targets. The reaction of organocerium reagents with secondary β‐enamino ketones