Mixed Diboration of Alkynes Catalyzed by LiOH: Regio- and Stereoselective Synthesis of cis-1,2-Diborylalkenes.
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DOI: 10.1021/acs.orglett.8b02830
Abstract: A diboration of terminal alkynes with an unsymmetrical diboron reagent pinBBdan has been achieved using LiOH as the catalyst in the presence of stoichiometric amounts of MeOH, affording 1,2-diborylalkenes with different boryl groups. The reaction… read more here.
Keywords: diboration alkynes; alkynes catalyzed; diboration; regio stereoselective ... See more keywords
Sodium-Metal-Promoted Reductive 1,2-syn-Diboration of Alkynes with Reduction-Resistant Trimethoxyborane
Sign Up to like & getrecommendations! Published in 2020 at "Bulletin of the Chemical Society of Japan"
DOI: 10.1246/bcsj.20200110
Abstract: Reductive 1,2-diboration of alkynes has been accomplished by means of sodium dispersion in the presence of trimethoxyborane as a reduction-resistant boron electrophile. Two boron moieties can be in... read more here.
Keywords: diboration alkynes; trimethoxyborane; reduction resistant; sodium metal ... See more keywords