Addition compounds of alkali-metal hydrides. 25. Rapid reaction of boronic esters and acids with lithium aluminum hydride. A novel and quantitative synthesis of lithium monoorganylborohydrides
作者:Bakthan Singaram、Thomas E. Cole、Herbert C. Brown
DOI:10.1021/om00083a022
日期:1984.5
SINGARAN, B.;COLE, TH. E.;BROWN, H. C., ORGANOMETALLICS, 1984, 3, N 5, 774-777
作者:SINGARAN, B.、COLE, TH. E.、BROWN, H. C.
DOI:——
日期:——
Thexylborane-A Highly Versatile Reagent for Organic Synthesis via Hydroboration
作者:Ei-ichi NEGISHI、Herbert C. BROWN
DOI:10.1055/s-1974-23248
日期:——
The present review discusses the chemistry of thexylborane pertinent to organic synthesis, and summarizes scattered results of organic synthesis involving thexylborane. 1.Chemistry of Thexylborane 1.1. Preparation and Characterization of Thexylborane 1.2. Reaction of Thexylborane with Olefins 2. Synthetic Applications of Thexylborane 2.1. Synthesis of Unsymmetrical Ketones - A Multi-Carbon Homologation of Olefins 2.2. Synthesis of Cyclic Ketones - A New Annelation Reaction 2.3. Coupling of Two Unlike Alkyl Groups via Bromination of Thexyldialkylboranes 2.4. Synthesis of trans-Disubstituted Olefins 2.5. Syntheses of Conjugated Dienes 2.6. Stereoselective Syntheses of Diols from Dienes 2.7. Synthesis of 1,5-Diols from Monoolefins 2.8. Synthesis of Monoalkylboranes as Triethylaminates 2.9. Selective Reduction with Thexylborane 2.10.Selective Reduction with Trialkylborohydrides Containing the Thexyl Group
visible-light-induced deboronative alkynylationreaction, which is redox-neutral and works with primary, secondary and tertiary alkyl trifluoroborates or boronic acids to generate aryl, alkyl and silyl substituted alkynes. This reaction is highly chemoselective and performs well on substrates containing alkenes, alkynes, aldehydes, ketones, esters, nitriles, azides, aryl halides, alkyl halides, alcohols