<span style="font-size:12.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-ansi-language: EN-IN;mso-fareast-language:EN-IN;mso-bidi-language:AR-SA" lang="EN-IN">One pot synthesis of novel 5, 11-dioxo-6-methyl-5,9,10,11-tetrahydro-8<i style="mso-bidi-font-style: normal">H</i>-naphth[2,3:1,2]pyrrolizine and its 9-acetoxy analogue</span>

Abstract

1123-11255, 11-dioxo-6-methyl-5,9,10,11-tetrahydro-8<i style="mso-bidi-font-style: normal">H-naphth[2,3:1,2]-pyrrolizine <span style="font-size:12.0pt; font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:ar-sa"="" lang="EN-IN">5a and its 9-acetoxy analogue <b style="mso-bidi-font-weight: normal">5b are prepared in a one-flask procedure by the reaction of L-proline 1a or 4-hydroxy-L-proline 1b with refluxing acetic anhydride and olefinic dipolarophile 1,4-naphthoquinone 4.</span