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New entry to chiral butenolide synthons. Application to expeditious syntheses of (+)-nephrosteranic acid, (+)-trans-whisky lactone, and (+)-trans-cognac lactone

✍ Scribed by Hiroki Takahata; Yasuhiro Uchida; Takefumi Momose

Book ID: 104214354
Publisher: Elsevier Science
Year: 1994
Tongue: French
Weight: 178 KB
Volume: 35
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)73129-7

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✦ Synopsis

A new entry to chiral butenolide synrhons starling with iodolactonization of the readily available, homochbal N-benzyl-N-methyl-3-hydmxy4pentenamide (1) and its appliition to the spp(+)-nephma~& acid (5). (+)-tram-whisky lactone (6). and (+)-nuns-cognac lactone (7)

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