Sulfuration of organoborates, an underexploited method
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Date
2012-11-09
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Abstract
The combination of sulfurating agents with organoboranes is an underexploited synthetic transformation.
The reactivity of borate complexes was investigated with several electrophilic sulfur species. Simple and
practical methods for making carbon±sulfur bonds were created under almost neutral conditions. These
enjoy a heavy metal-free environment and use not so toxic boron compounds. This is in contrast to the
manipulation of poisonous H2S or the use of sulfur with Grignard reagents, under highly basic and
moisture-sensitive conditions. # 2000 Elsevier Science Ltd. All rights reserved.
Description
The combination of sulfurating agents with organoboranes is an underexploited synthetic transformation.
The reactivity of borate complexes was investigated with several electrophilic sulfur species. Simple and
practical methods for making carbon±sulfur bonds were created under almost neutral conditions. These
enjoy a heavy metal-free environment and use not so toxic boron compounds. This is in contrast to the
manipulation of poisonous H2S or the use of sulfur with Grignard reagents, under highly basic and
moisture-sensitive conditions. # 2000 Elsevier Science Ltd. All rights reserved
Keywords
sulfuration; hypervalent elements; boron and compounds; disul®des; sul®des.