ChemInform Abstract: Selective Reduction of Carbonyl Compounds with Diisopinocampheylhaloboranes.

Abstract

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Regiospecific Ring-Opening of Unsymmetrical Epoxides to the Corresponding Less Substituted Alcohols by Newly-Devised Meerwein-Ponndorf-Verley Type Reagents

“…24 Professor Brown and his coworkers devised diisopinocampheylchlorob- orane (Ipc 2 BCl) (9), which is the outcome from a strategic modification of the electronic and steric environments of the boron in trialkylboranes can reduce a variety of ketones as well as aldehydes to the corresponding alcohols even at -25 o C. Soon other mono-and diisopinocampheylhaloboranes (10 and 11), were also prepared. [25][26][27][28][29] Furthermore, hydroxy-, alkoxy-, acetoxyand methanesulfonyl-incorporated diisopinocampheylborane derivatives (12)(13)(14)(15)(16)(17) were prepared and their applicability in MPV type reduction was explored. [30][31][32][33][34][35][36]…”