A new synthesis of imidazo[1,2‐ a ]pyridine and imidazo[2,1‐ a ]isoquinoline derivatives | Zendy

Tominaga Yoshinori | Zendy; Motokawa Shigenori | Zendy; Shiroshita Yoshihide | Zendy; Hosomi Akira | Zendy

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A new synthesis of imidazo[1,2‐ a ]pyridine and imidazo[2,1‐ a ]isoquinoline derivatives

Author(s) -

Tominaga Yoshinori,

Motokawa Shigenori,

Shiroshita Yoshihide,

Hosomi Akira

Publication year - 1987

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570240527

Subject(s) - chemistry , pyridinium , isoquinoline , pyridine , ylide , medicinal chemistry , methylene , bicyclic molecule , organic chemistry

A new synthesis of imidazo[1,2‐ a ]pyridine and imidazo[2,1‐ a ]isoquinoline derivatives 4 and 8 , respectively by 1,5‐dipolar cyclization reactions of stabilized pyridinium N ‐ylides 3a‐e or isoquinolinium N ‐ylide 7 is described. The starting N ‐ylides 3a‐e and 7 are prepared by the reaction of the corresponding pyridinium salts 1a‐e or isoquinolinium salts 6 with N ‐bis(methylthio)methylene‐ p ‐toluenesulfonamide (2) .

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