The construction of quaternary carbon centers, which are carbons bonded to four other carbon atoms, is a challenging task in organic synthesis. Asymmetric methods are particularly valuable for this purpose because they allow the creation of quaternary carbons with well-defined stereochemistry.
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Phosphinous acid, diphenyl-, trimethylsilyl ester
(Z)-2-Methyl-4-triisopropylsilanyloxy-but-2-enoic acid (2-iodo-phenyl)-methyl-amide
Benzene, [(2-bromoethenyl)sulfonyl]-, (E)-
(R)-2-methyl-2-(naphthalen-2-yl)-4,4-bis(phenylsulfonyl)butanal
