-
1
-
-
0001176061
-
-
Katritzky A.R., Ress C.W., and Scriven E.F.V. (Eds), Pergamon, Oxford
-
Keay B.A., and Dibble P.W. In: Katritzky A.R., Ress C.W., and Scriven E.F.V. (Eds). Comprehensive Heterocyclic Chemistry II Vol. 2 (1997), Pergamon, Oxford 395-436
-
(1997)
Comprehensive Heterocyclic Chemistry II
, vol.2
, pp. 395-436
-
-
Keay, B.A.1
Dibble, P.W.2
-
2
-
-
33845374099
-
-
For reviews, see:
-
For reviews, see:. Lipshutz B.H. Chem. Rev. 86 (1986) 795
-
(1986)
Chem. Rev.
, vol.86
, pp. 795
-
-
Lipshutz, B.H.1
-
4
-
-
0032485365
-
-
For recent reviews of furan synthesis, see:
-
For recent reviews of furan synthesis, see:. Hou X.L., Cheung H.Y., Hon T.Y., Kwan P.L., Lo T.H., Tong S.Y., and Wong H.N.C. Tetrahedron 54 (1998) 1955
-
(1998)
Tetrahedron
, vol.54
, pp. 1955
-
-
Hou, X.L.1
Cheung, H.Y.2
Hon, T.Y.3
Kwan, P.L.4
Lo, T.H.5
Tong, S.Y.6
Wong, H.N.C.7
-
7
-
-
0037059436
-
-
For selected examples of cycloisomerization approaches to furans, see:
-
For selected examples of cycloisomerization approaches to furans, see:. Kel'in A.V., and Gevorgyan V. J. Org. Chem. 67 (2002) 95
-
(2002)
J. Org. Chem.
, vol.67
, pp. 95
-
-
Kel'in, A.V.1
Gevorgyan, V.2
-
10
-
-
23044485049
-
-
For recent examples of bromofuran synthesis, see:
-
For recent examples of bromofuran synthesis, see:. Sromek A.W., Rubina M., and Gevorgyan V. J. Am. Chem. Soc 127 (2005) 10500
-
(2005)
J. Am. Chem. Soc
, vol.127
, pp. 10500
-
-
Sromek, A.W.1
Rubina, M.2
Gevorgyan, V.3
-
15
-
-
65549134455
-
-
note
-
2O is not originally assigned 5-hydroxy allenic ester,7 but the furan 4.
-
-
-
-
17
-
-
65549152609
-
-
note
-
The reaction without addition of water resulted in lower yield (<51%).
-
-
-
-
19
-
-
65549139979
-
-
note
-
2Br in THF
-
-
-
-
20
-
-
4544342275
-
-
Preparation of 11 from 8 by the Olpp and Brückner method with diphenoxybromophosphonoacetate resulted in lower E-selectivity of 11 (E/Z = 77:23)
-
Preparation of 11 from 8 by the Olpp and Brückner method with diphenoxybromophosphonoacetate resulted in lower E-selectivity of 11 (E/Z = 77:23). Olpp T., and Brückner R. Synthesis (2004) 2135
-
(2004)
Synthesis
, pp. 2135
-
-
Olpp, T.1
Brückner, R.2
-
21
-
-
65549167590
-
-
note
-
4 and concentrated. The crude product was purified by flash column chromatography on silica gel (hexane/EtOAc = 85:15) to give 13 (25.0 mg, 75%) as a pale yellow oil.
-
-
-
-
22
-
-
65549122728
-
-
note
-
2 (dimethyl(1,1,1,3,3,3-hexafluoro-2-propanolato)aluminum.
-
-
-
-
23
-
-
65549170810
-
-
note
-
2CHOH was changed in 3:1,3:2, 1:1, and 1:2, 14 was obtained in 76%, 92%, 77%, and <20% yield, respectively.
-
-
-
-
24
-
-
65549103125
-
-
note
-
4 and concentrated. The crude product was purified by flash column chromatography on silica gel (hexane/EtOAc = 8:2) to give 14 (32.7 mg, 92%) as a pale yellow oil.
-
-
-
-
25
-
-
65549113187
-
-
note
-
2, 0 °C).
-
-
-
|