《Selective uni- and bidirectional homologation of diborylmethane》 was written by Blair, Daniel J.; Tanini, Damiano; Bateman, Joseph M.; Scott, Helen K.; Myers, Eddie L.; Aggarwal, Varinder K.. Recommanded Product: Bis[(pinacolato)boryl]methaneThis research focused onuni bidirectional homologation diborylmethane; bis boronic ester preparation reactivity. The article conveys some information:
Diborylmethane can be homologated uni- and bidirectionally by using enantiomerically pure lithium-stabilized carbenoids to give 1,2- and 1,3-bis(boronic esters), resp., in good yield and with excellent levels of enantio- and diastereoselectivity. The high sensitivity of the transformation to steric hindrance enables the exclusive operation of either manifold, effected through the judicious choice of the type of carbenoid, which can be a sparteine-ligated or a diamine-free lithiated benzoate/carbamate. The scope of the 1,2-bis(boronic esters) so generated is complementary to that encompassed by the asym. diboration of alkenes, in that primary-secondary and primary-tertiary 1,2-bis(boronic esters) can be prepared with equally high levels of selectivity and that functional groups, such as terminal alkynes and alkenes, are tolerated. Methods for forming C2-sym. and non-sym. anti and syn 1,3-bis(boronic esters) are also described and represent a powerful route towards 1,3-functionalized synthetic intermediates. In the experiment, the researchers used Bis[(pinacolato)boryl]methane(cas: 78782-17-9Recommanded Product: Bis[(pinacolato)boryl]methane)
Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds. Organoboron compounds have been a cornerstone of synthetic transformations for decades. Areas such as boron-containing catalysts, metalate chemistry, photoredox methods, and boryl anions have brought significant new developments in understanding and provided new reactivity upon.Recommanded Product: Bis[(pinacolato)boryl]methane
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