back_to_serach_result

Pyridine ring formation by the reaction of conjugated carbodiimides with enamines

Technology reports of the Yamaguchi University Volume 5 Issue 1 Page 1-9

published_at 1992-12

KJ00004351145.pdf

[fulltext] 539 KB

Title

Pyridine ring formation by the reaction of conjugated carbodiimides with enamines

Creators Nishida Akio

Creators Isomura Yuji

Creators Noguchi Michihiko

Source Identifiers

The reaction of N-[6-methyl-2-oxo-4(2H)-pyranyl]-substituted carbodiimides 3, generated by the treatment of [6-methyl-2-oxo-4(2H)-pyranyl] iminotriphenylphosphorane (1) with isocyanates 2 in situ, with 1-(1-pyrrolidinyl) cyclopentene (4) in refluxing toluene or dioxane gave cyclopenta [d] pyrano [4,3-b] pyridine derivatives 5. A similar reaction of 3 with 1-(1-pyrrolidinyl) cyclohexene (6) afforded pyrano [4,3-b] isoquinoline derivatives 7 and 8. Compound 8 corresponds formally to the adduct of 7 and isocyanate 2.

Subjects

工学 ( Other)

Languages eng

Resource Type departmental bulletin paper

Publishers 山口大学工学部

Date Issued 1992-12

File Version Version of Record

Access Rights open access

Relations

[ISSN]0386-3433

[NCID]AA0086073X

Schools 工学部