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- W56326837 abstract "This review brings together examples from the recent literature which demonstrate the potential of nucleophilic addition/ring closure (NARC) sequences for the synthesis of heterocyclic compounds. A heavy emphasis is placed on the stereoselectivity associated with such syntheses. After an introductory section the material is organised into a series of sections based on different classes of nucleophiles. The first (and major) section deals with nucleophilic additions to aldehydes, ketones and aldimines. High levels of stereocontrol in both the nucleophilic addition step (especially where the nucleophile is a chiral enolate) and the ring closure step (which often involves electrophilic activation) are often obtained. Examples are given in the areas of naturally-occurring tetrahydrofurans and tetrahydropyrans. In the final section examples of NARC sequences involving lactones are given." @default.
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- W56326837 date "1997-01-01" @default.
- W56326837 modified "2023-10-12" @default.
- W56326837 title "The nucleophilic addition/ring closure (NARC) sequence for the stereocontrolled synthesis of heterocycles" @default.
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- W56326837 doi "https://doi.org/10.1007/bfb0119246" @default.
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