Tetrahedron Letters

Polar cycloaddition of α-acyl-α-chlorosulfides with alkynes. Novel one-step syntheses of furans and 2-furanones

H Ishibashi, S Akai, HD Choi, H Nakagawa…

Index: Ishibashi, H.; Akai, S.; Choi, H.-D.; Nakagawa, H.; Tamura, Y. Tetrahedron Letters, 1983 , vol. 24, # 36 p. 3877 - 3878

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Citation Number: 13

Abstract

: mp 125–126°; IR (CHCl 3 ) 1760 cm −1 ; NMR (CDCl 3 ) δ 1.97 (s, 3H, SMe), 6.51 (s, 1H, C 3 -H), and 7.2–7.8 (m, 10H, arom). : IR 1755 cm −1 ; NMR δ 2.61 (s, 3H, SMe), 6.22 (s, 1H, C 5 -H), and 7.2–7.5 (m, 10H, arom). : IR 1760 cm −1 ; NMR δ 0.7–2.1 [m, 13H, (CH 2 ) 5 Me], 2.47 (s, 3H, SMe), 4.8–5.0 (m, 1H, C 5 -H), and 5.64 (bs, 1H, C 4 -H). ... Cookies are used by this site. To decline or learn more, visit our Cookies page.