Tetrahedron letters

Improved synthesis of pyrrolo [1, 2-c] pyrimidine and derivatives

…, JJ Vaquero, JL García-Navio, J Alvarez-Builla

Index: Minguez, Jose M.; Vaquero, Juan J.; Garcia-Navio, Jose L.; Alvarez-Builla, Julio Tetrahedron Letters, 1996 , vol. 37, # 24 p. 4263 - 4266

Full Text: HTML

Citation Number: 23

Abstract

(7a): IR (KBr) υ max 1594, 1348, 1301, 1147 cm −1 . 1 H NMR (300 MHz, CDCl 3 ) δ 8.72 (s, 1H, H 1 ) 8.25 (s, 1H), 7.94 (d, 2H, J = 8.2 Hz), 7.49 (d, 1H, J = 2.9 Hz), 7.31 (d, 2H, J = 8.2 Hz), 7.02 (dd, 1H, J = 4.0 Hz, J = 2.9 Hz), 6.82 (d, 1H, J = 4.1 Hz), 2.41 (s, 3H) ppm. MS ( , rel intensity) 272 (M + , 29), 207 (18), 139 (18), 106 (100). Anal. calcd. for C 14 H 12 N 2 O 2 S: C, 61.75; H, 4.44; N, 10.29; Found: C, 61.50; H, 4.58; N, 10.58. (1a): 1 H NMR (300 ...