Protected DHA units, known as dioxanones, are interesting compound which can be used as the building blocks for synthesis of polyoxygenated natural products. The direct aldol reaction is employed for converting of those inexpensive starting materials into enantioenriched products of complexed structures. The stereocontrol in the first aldol reaction is achieved by using organocatalysis. Second aldol reaction is conducted by lithium enolate chemistry leading to anticisanti aldols as a major isomer. On the other hand boron chemistry provides antitransanti products. This strategy is used for synthesis of higher sugars.

Protected DHA units, known as dioxanones, are interesting compound which can be used as the building blocks for synthesis of polyoxygenated natural products. The direct aldol reaction is employed for converting of those inexpensive starting materials into enantioenriched products of complexed structures. The stereocontrol in the first aldol reaction is achieved by using organocatalysis. Second aldol reaction is conducted by lithium enolate chemistry leading to anticisanti aldols as a major isomer. On the other hand boron chemistry provides antitransanti products. This strategy is used for synthesis of higher sugars.

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