Subscribe to RSS
DOI: 10.1055/s-2003-44969
An Efficient Access to Selenazoline-4-Carboxylate Derivatives Incorporating Cyclopropyl Groups
Publication History
Publication Date:
04 December 2003 (online)

Abstract
5-Spirocyclopropane-annulated selenazoline-4-carboxylates were synthesized in good yield via Michael addition of selenoamide to 2-bromo-2-cyclopropylideneacetate followed by an intramolecular substitution under basic conditions (NaHCO3, MeCN).
Key words
Michael addition - selenoamide - selenium heterocycles
-
1a
Liu HW.Walsh CT. In The Chemistry of the Cyclopropyl Group Vol. 2:Rappoport Z. Wiley & Sons; New York: 1987. p.959 -
1b
Burger A. Progr. Drug Res. 1971, 15: 227 -
1c
Baldwin JE.Parker DW. J. Org. Chem. 1987, 52: 1475 -
1d
Baldwin JE.Parker DW. Chem. Rev. 2003, issue 4: -
2a
Gnad F.Reiser O. Chem. Rev. 2003, 103: 1603 -
2b
Wessjohann L.Krass N.Yu D.de Meijere A. Chem. Ber. 1992, 125: 867 ; and references therein -
3a
Shafiee A.Mazloumi A.Cohen VI. J. Heterocycl. Chem. 1979, 16: 1563 -
3b
Shafiee A.Shafaati A.Khamench BH. J. Heterocycl. Chem. 1989, 26: 709 -
3c
Shafieem A.Khashayarmanesh Z.Kamal F. J. Sci. Islamic Rep. Iran 1990, 1: 111 ; Chem. Abstr. 1991, 115: 49544 -
4a
Huang X.Xie MH. Org. Lett. 2002, 4: 1331 -
4b
Huang X.Xie MH. J. Org. Chem. 2002, 67: 8895 -
4c
Huang X.Sun A. J. Org. Chem. 2000, 65: 6561 - Synthesis of MCPs:
-
5a
Brandi A.Cicchi S.Cordero FM.Goti A. Chem. Rev. 2003, 103: 1213 -
5b
Brandi A.Goti A. Chem. Rev. 1998, 98: 598 -
5c
Yamago S.Nakamura E. Org. React. 2002, 61: 1 -
5d
Nakamura E.Yamago S. Acc. Chem. Res. 2002, 35: 867 -
5e
Yamago S.Takeichi A.Nakamura E. Synthesis 1996, 1380 - Reviews:
-
6a
Binger P.Buch HM. Top. Curr. Chem. 1987, 135: 77 -
6b
Ohta T.Takaya H. In Comprehensive Organic Synthesis Vol. 5:Trost BM. Pergamon; Oxford: 1991. p.1185 -
7a
Salaün J. Top. Curr. Chem. 1999, 207: 1 -
7b
Salaün J.Baird MS. Curr. Med. Chem. 1995, 2: 511 -
7c
Huang Z.He YB.Raynor K.Tallent M.Reisine T.Goodman M. J. Am. Chem. Soc. 1992, 114: 9390 -
7d
Zhu YF.Yamazaki T.Tsang JW.Lok S.Goodman M. J. Org. Chem. 1992, 57: 1074 -
7e
Notzel MW.Tamm M.Labahn T.Noltemeyer M.Es-Sayed M.de Meijere A. J. Org. Chem. 2000, 65: 3850 -
7f
Nötzel MW.Labahn T.Es-Sayed M.de Meijere A. Eur. J. Org. Chem. 2001, 3025 - 8
Sun PP.Chang MY.Chiang MY.Chang NC. Org. Lett. 2003, 5: 1761 - For recent examples of selenoamides, see:
-
9a
Pan BC.Chen ZH.Piras G.Dutschman GE.Rowe EC.Cheng YC.Ch SH. J. Heterocycl. Chem. 1994, 177 -
9b
Koketsu M.Senda T.Yoshimura K.Ishihara H. J. Chem. Soc., Perkin Trans. 1 1999, 453 -
9c
Attanasi OA.Filippone P.Perrulli FR.Santeusanio S. Eur. J. Org. Chem. 2002, 2323 -
9d
Koketsu M.Takenaka Y.Hiramatsu S.Ishihara H. Heterocycles 2001, 55: 1181 -
9e
Koketsu M.Hiramatsu S.Ishihara H. Chem. Lett. 1999, 485 -
9f
Zhang PF.Chen ZC. Synthesis 2000, 1219 -
9g
Koketsu M.Kanoh M.Itoh E.Ishihara H. J. Org. Chem. 2001, 66: 4099 -
9h
Koketsu M.Takenaka Y.Ishihara H. Synthesis 2001, 38: 503 -
9i
Zhang PF.Chen ZC. J. Heterocycl. Chem. 2001, 38: 503 -
9j
Ishihara H.Koketsu M.Fukuta Y.Nada F. J. Am. Chem. Soc. 2001, 123: 8408 -
9k
Bhattacharyya P.Woollins JD. Tetrahedron Lett. 2001, 42: 5949 -
9l
Koketsu M.Okayama Y.Aoki H.Ishihara H. Heteroat. Chem. 2002, 13: 195 -
9m
Zhao H.-R.Zhao X.-J.Huang X. Synth. Commun. 2002, 32: 3383 -
11a
Huang X.Zhou HW. Org. Lett. 2002, 4: 4419 -
11b
Zhou HW.Huang X.Chen WL. Synlett 2003, 2080 -
13a
Lai LL.Reid DH. Synthesis 1993, 870 -
13b
Zhao HR.Ruan MD.Fan WQ.Zhou XJ. Synth. Commun. 1994, 24: 1761
References
Typical Procedure for the Synthesis of 4: A solution of the respective ethyl-2-bromo-2-cyclopropylideneacetate
[2]
(1) (0.5 mmol), selenoamide
[13]
2 (0.5mmol), and NaHCO3 (1.00 g, 11.9 mmol) in freshly distilled MeCN (10 mL) was heated under reflux for 1-2 h. After filtration, the solvent was evaporated in vacuo. The residue was subjected to preparative TLC (eluent: petroleum ether-Et2O, 3:1) to afford the product 4.
4a: IR (film): 3062, 2981, 1747, 1729, 1255, 1180 cm-1. 1H NMR (CDCl3): δ = 7.76-7.78 (m, 2 H), 7.46-7.48 (m, 1 H), 7.39-7.43 (m, 2 H), 4.83 (s, 1 H), 4.20-4.25 (q, J = 7.1 Hz, 2 H), 1.27-1.31 (t, J = 7.1 Hz, 3 H), 1.13-1.17 (m, 4 H). 13C NMR (CDCl3): δ = 171.27, 168.44, 135.60, 131.60, 128.96, 128.60, 86.01, 61.34, 32.13, 16.63, 14.30, 9.36. MS (EI): m/z: 309 (4.64) [M+(Se80)], 236 (100). Anal. Calcd for C14H15NO2Se: C, 54.55, H, 4.91, N, 4.54. Found: C, 54.70; H, 4.98; N, 4.50.
4b: IR (film): 3067, 2981, 1747, 1730, 1181, 1092 cm-1. 1H NMR (CDCl3): δ = 7.69-7.72 (d, J = 8.8 Hz, 2 H), 7.38-7.40 (d, J = 8.8 Hz, 2 H), 4.82 (s, 1 H), 4.21-4.26 (q, J = 7.1 Hz, 2 H), 1.31-1.28 (t, J = 7.1 Hz, 3 H), 1.14-1.18 (m, 4 H). 13C NMR (CDCl3): δ = 169.93, 168.27, 137.68, 134.08, 130.16, 128.83, 85.97, 61.41, 32.57, 16.57, 14.29, 9.36. MS (EI): m/z = 343 (5.43) [M+(Se80,Cl35)], 270 (100). Anal. Calcd for C14H14ClNO2Se: C, 49.07; H, 4.12; N, 4.09. Found: C, 48.81; H, 4.20; N, 4.20.
4c: IR (film): 3065, 2980, 1745, 1729, 1179, 1096 cm-1. 1H NMR (CDCl3): δ = 7.63-7.65 (d, J = 8.4 Hz, 2 H), 7.54-7.56 (d, J = 8.4 Hz, 2 H), 4.81 (s, 1 H), 4.20-4.26 (q, J = 7.1 Hz, 2 H), 1.28-1.31 (t, J = 7.1 Hz, 3 H), 1.14-1.17 (m, 4 H). 13C NMR (CDCl3): δ = 170.05, 168.23, 134.54, 131.80, 130.33, 126.16, 86.02, 61.41, 32.57, 16.57, 14.27, 9.37. MS (EI): m/z = 387 (4.23) [M+(Se80,Br79)], 97 (100), 314 (23.72). Anal. Calcd for C14H14BrNO2Se: C, 43.43; H, 3.65; N, 3.62. Found: C, 43.55; H, 3.72; N, 3.60.
4d: IR (film): 3065, 2891, 1746,1730, 1245, 1281 cm-1. 1H NMR (CDCl3): δ = 7.96-7.97 (t, J = 1.7 Hz, 1 H), 7.59-7.66 (m, 2 H), 7.27-7.31 (t, J = 7.8 Hz, 1 H), 4.83 (s, 1 H), 4.19-4.25 (q, J = 7.1 Hz, 2 H), 1.28-1.32 (t, J = 7.1 Hz, 3 H) 1.14-1.18 (m, 4 H). 13C NMR (CDCl3): δ = 169.73, 168.17, 137.45, 134.44, 131.39, 130.07, 127.81, 122.75, 85.96, 61.45, 32.57, 16.55, 14.28, 9.39. MS (EI): m/z = 387 (4.23) [M+(Se80,Br79)], 314 (100). Anal. Calcd for C14H14BrNO2Se: C, 43.43; H, 3.65; N, 3.62. Found: C, 43.23; H, 3.73; N, 3.60.
4e: IR (film): 3063, 2980, 1747, 1728, 1255, 1179 cm-1. 1H NMR (CDCl3): δ = 7.65-7.67 (d, J = 8.1 Hz, 2 H), 7.20-7.22 (d, J = 8.1 Hz, 2 H), 4.81 (s, 1 H), 4.17-4.23 (q, J = 7.1 Hz, 2 H), 2.39 (s, 3 H), 1.27-1.31 (t, J = 7.1 Hz, 3 H), 1.13-1.17 (m, 4 H). 13C NMR (CDCl3): δ = 171.05, 168.57, 142.07, 133.03, 129.26, 128.94, 86.00, 61.28, 32.00, 21.52, 16.62, 14.28, 9.34. MS (EI): m/z = 323 (3.28) [M+(Se80)], 250(100). Anal. Calcd for C15H17NO2Se: C, 55.91; H, 5.32; N, 4.35. Found: C, 55.79; H, 5.40; N, 4.41.
4f: IR (film): 3065, 2981, 1746,1729, 1265, 1181 cm-1. 1H NMR (CDCl3): δ = 7.64 (s, 1 H), 7.55-7.56 (m, 1 H), 7.29-7.30 (m, 2 H), 4.83 (s, 1 H), 4.22-4.25 (q, J = 7.1 Hz, 2 H), 2.39 (s, 3 H), 1.28-1.31 (t, J = 7.1 Hz, 3 H), 1.14-1.17 (m, 4 H). 13C NMR (CDCl3): δ = 171.40, 168.25, 138.49, 135.14, 132.71, 129.32, 128.56, 126.54, 85.38, 61.43, 31.89, 21.22, 16.81, 14.29, 9.23. MS (EI): m/z = 323 (3.83) [M+(Se80)], 250 (100).; Anal. Calcd for C15H17NO2Se: C, 55.91; H, 5.32; N, 4.35. Found: C, 56.08; H, 5.21; N, 4.42.
4g: IR (film): 3063, 2982, 1732, 1253, 1182 cm-1. 1H NMR (CDCl3): δ = 7.75-7.79 (m, 2 H), 7.08-7.12 (m, 2 H), 4.81 (s, 1 H), 4.20-4.24 (q, J = 7.1 Hz, 2 H), 1.28-1.32 (t, J = 7.1 Hz, 3 H), 1.14-1.18 (m, 4 H). 13C NMR (CDCl3): δ = 171.27, 168.36, 164.73 (d, J = 250.9 Hz), 131.96 (d, J = 3.1 Hz), 131.03 (d, J = 8.7 Hz), 115.66 (d, J = 22 Hz), 85.96, 61.37, 32.58, 16.57, 14.27, 9.32; MS (EI): m/z = 327 (2.60) [M+(Se80)], 254 (100). Anal. Calcd for C14H14FNO2Se: C, 51.54; H, 4.33; N, 4.29. Found: C, 51.69; H, 4.40; N, 4.13.
4h: IR (film): 3064, 2981, 1747, 1727, 1254, 1037 cm-1. 1H NMR (CDCl3): δ = 7.35 (s, 1 H), 7.21-7.24 (m, 1 H), 6.80-6.82 (d, J = 8.0 Hz, 1 H), 6.02 (s, 2 H), 4.78 (s, 1 H), 4.18-4.25 (q, J = 7.1 Hz, 2 H), 1.27-1.31 (t, J = 7.1 Hz, 3 H), 1.13-1.16 (m, 4 H). 13C NMR (CDCl3): δ = 170.02, 168.56, 150.50, 147.98, 130.08, 125.00, 108.17, 108.04, 101.73, 85.81, 61.30, 32.22, 16.60, 14.29, 9.27. MS (EI): m/z = 353 (1.03) [M+(Se80)], 84 (100), 280 (17.15). Anal. Calcd for C15H15NO4Se: C, 51.15; H, 4.29; N, 3.98 Found: C, 51.00; H, 4.38; N, 4.08.
4i: IR (film): 3065, 2980, 1746, 1728, 1252, 1105 cm-1. 1H NMR (CDCl3): δ = 7.29-7.40 (m, 5 H), 4.81 (s, 1 H), 4.30 (s, 2 H), 4.20-4.25 (q, J = 7.1 Hz, 2 H), 1.27-1.31 (t, J = 7.1 Hz, 3 H), 1.14-1.18 (m, 4 H). 13C NMR (CDCl3): δ = 171.11, 168.40, 135.35, 129.10, 128.45, 127.78, 85.98, 61.29, 43.10, 32.04, 16.53, 14.29, 9.35. MS (EI): m/z = 323 (3.60) [M+(Se80)]. Anal. Calcd for C15H17NO2Se: C, 55.91; H, 5.32; N, 4.35; Found: C, 55.80; H, 5.40; N, 4.20.
Typical procedure: A solution of 4a (171 mg, 0.5 mmol) with CuBr2 (450 mg, 2 mmol) in MeCN (10 mL) was stirred under reflux and was monitored by TLC. After the reaction was completed, the mixture was diluted with 20 mL of sat. NH4Cl and then extracted with Et2O (3 ×). The Et2O phases were combined and dried over MgSO4. After evaporation, the residue was subjected to preparative TLC (eluent: petroleum ether-Et2O, 3:1) to afford 5a 192mg (82%). IR(film): 3061, 2980, 1735 cm-1. 1H NMR (CDCl3): δ = 7.99-8.01 (m, 2 H), 7.52-7.56 (m, 1 H), 7.42-7.48 (m, 2 H), 5.00 (s, 1 H), 4.25-4.34 (m, 2 H), 3.70-3.90 (m, 4 H), 1.33-1.37 (t, J = 7.1 Hz, 3 H). 13C NMR (CDCl3): δ = 169.22, 165.13, 132.78, 129.19, 128.88, 126.62, 86.62, 74.59, 62.55, 36.50, 32.39, 14.47. MS (EI): m/z = 467 (0.58) [M+(Se80,Br79,Br79)]. Anal. Calcd for C14H15Br2NO2Se: C, 35.93; H, 3.23; N, 2.99. Found: C, 36.90; H, 3.41; N, 3.10.