4-孕烯-3,11,20-三酮合成路线 （共 14 条）
反应条件
chromium(VI) oxide; acetic acid
参考文献
Upjohn Co.
Patent: US2676181 , 1951 ;
反应条件
trimethylsilyl iodide in chloroform 3 h; Ambient temperature;
参考文献
Numazawa; Nagaoka; Kunitama
Chemical and pharmaceutical bulletin, 1986 , vol. 34, # 9 p. 3722 - 3726
反应条件
methanol; trimethylsilyl iodide in acetonitrile 2.5 h; Ambient temperature;
参考文献
Nagaoka, Masao; Kunitama, Yurie; Numazawa, Mitsuteru
Journal of Organic Chemistry, 1991 , vol. 56, # 1 p. 334 - 338
反应条件
1: 16 percent / pyridine / 216 h / Ambient temperature 2: 55 percent / Me3SiI, MeOH / acetonitrile / 2.5 h / Ambient temperature View Scheme
参考文献
Nagaoka, Masao; Kunitama, Yurie; Numazawa, Mitsuteru
Journal of Organic Chemistry, 1991 , vol. 56, # 1 p. 334 - 338
反应条件
1: mit Hilfe von Rhizopus nigricans und Rhizopus arrhizus 2: CrO3; acetic acid View Scheme
参考文献
Peterson et al.
Journal of the American Chemical Society, 1952 , vol. 74, p. 5933,5935
反应条件
methanol; trimethylsilyl iodide in acetonitrile 10 h; Ambient temperature;
参考文献
Nagaoka, Masao; Kunitama, Yurie; Numazawa, Mitsuteru
Journal of Organic Chemistry, 1991 , vol. 56, # 1 p. 334 - 338
反应条件
1: 7 percent / Me3SiI, MeOH / acetonitrile / 2.5 h / Ambient temperature 2: 77 percent / Ag2O / 12 h / Heating 3: 72 percent / Me3SiI, MeOH / acetonitrile / 10 h / Ambient temperature View Scheme
参考文献
Nagaoka, Masao; Kunitama, Yurie; Numazawa, Mitsuteru
Journal of Organic Chemistry, 1991 , vol. 56, # 1 p. 334 - 338
反应条件
35 h; incubation with Rhizopus stolonifer ATCC 6227b;
参考文献
Holland; Thomas
Canadian Journal of Chemistry, 1982 , vol. 60, # 2 p. 160 - 164
反应条件
1: 86 percent / tri-n-butyltin hydride, azoisobutironitrile / tetrahydrofuran / 5 h / Ambient temperature 2: 33 percent / 36 h / incubation with Rhizopus stolonifer ATCC 6227b View Scheme
参考文献
Holland; Thomas
Canadian Journal of Chemistry, 1982 , vol. 60, # 2 p. 160 - 164
反应条件
1: chloroform; toluene-sulfonic acid-(4)-chloride; pyridine / Erwaermen des Reaktionsprodukts mit NaI in Aceton und Behandeln des danach erhaltenen Reaktionsprodukts mit Essigsaeure und Zink-Pulver 2: CrO3; acetic acid View Scheme
参考文献
Reichstein; Fuchs
Helvetica Chimica Acta, 1940 , vol. 23, p. 684,686
