New reagents. II. Reagents for asymmetric synthesis. Asymmetric synthesis by the use of oxazaborolidine or cyclic diamidoborane.
نویسندگان
چکیده
منابع مشابه
Asymmetric Synthesis with Hypervalent Iodine Reagents.
This chapter describes recent developments in stereoselective synthesis using hypervalent iodine reagents.
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Functionalized asymmetric porphyrins bearing highly reactive centers in substituents at the mesopositions were synthesized in good yields by the reaction of 5,15-diphenylporphyrin with organolithium reagents. Using these porphyrins as precursors highly complex tetrapyrrolic systems are accessible. The synthetic strategy is based on our earlier reports on the combined use of organolithium and al...
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Anionic, electron-releasing phosphines that incorporate a borate counteranion within the ligand framework are promising reagents for organometallic catalysis. This report describes the synthesis of a new class of monodentate tertiary phosphines built upon the commonly employed tetraphenylborate anion. These new phosphines are highly stable and strongly electron-releasing and readily coordinate ...
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ژورنال
عنوان ژورنال: Journal of Synthetic Organic Chemistry, Japan
سال: 1990
ISSN: 0037-9980,1883-6526
DOI: 10.5059/yukigoseikyokaishi.48.980