Technology Process of 2,2-Dimethyl-propionic acid (2R,3R,4S,5R)-5-((2S,3R,4S,5S,6R)-4-allyloxy-3,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-2,4-bis-benzyloxy-tetrahydro-pyran-3-yl ester
There total 12 articles about 2,2-Dimethyl-propionic acid (2R,3R,4S,5R)-5-((2S,3R,4S,5S,6R)-4-allyloxy-3,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-2,4-bis-benzyloxy-tetrahydro-pyran-3-yl ester which
guide to synthetic route it.
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synthetic route:
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144985-27-3
2,2-Dimethyl-propionic acid (2R,3R,4S,5R)-5-((2S,3R,4S,5S,6R)-4-allyloxy-3,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-2,4-bis-benzyloxy-tetrahydro-pyran-3-yl ester
- Guidance literature:
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Multi-step reaction with 3 steps
2: 75 percent / silver triflate, MS4A / CH2Cl2; toluene / -50 °C
3: 1) LiOH, 30percent H2O2, 2) KI, Ag2O / 1) THF, 2) DMF
With
lithium hydroxide; dihydrogen peroxide; silver trifluoromethanesulfonate; potassium iodide; silver(l) oxide;
In
dichloromethane; toluene;
DOI:10.1016/S0040-4039(00)61200-5
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144985-27-3
2,2-Dimethyl-propionic acid (2R,3R,4S,5R)-5-((2S,3R,4S,5S,6R)-4-allyloxy-3,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-2,4-bis-benzyloxy-tetrahydro-pyran-3-yl ester
- Guidance literature:
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Multi-step reaction with 9 steps
1: NaOMe / methanol; tetrahydrofuran
2: 1) Bu2SnO, 2) Bu4NBr / 1) THF, toluene, 2) THF
3: TsOH*H2O / tetrahydrofuran
4: DMAP, pyridine
5: 1) NaBH3CN, powdered molecular sieves 4A, HCl, 2) NaH / 1) THF, 2) DMF
7: CCl4, (Me2N)3P / THF
8: 75 percent / silver triflate, MS4A / CH2Cl2; toluene / -50 °C
9: 1) LiOH, 30percent H2O2, 2) KI, Ag2O / 1) THF, 2) DMF
With
pyridine; hydrogenchloride; tetrachloromethane; dmap; lithium hydroxide; 4 A molecular sieve; tetrabutylammomium bromide; dihydrogen peroxide; sodium methylate; silver trifluoromethanesulfonate; sodium hydride; di(n-butyl)tin oxide; sodium cyanoborohydride; toluene-4-sulfonic acid; potassium iodide; silver(l) oxide; Hexamethylphosphorous triamide;
In
tetrahydrofuran; methanol; dichloromethane; toluene;
DOI:10.1016/S0040-4039(00)61200-5
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144985-27-3
2,2-Dimethyl-propionic acid (2R,3R,4S,5R)-5-((2S,3R,4S,5S,6R)-4-allyloxy-3,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-2,4-bis-benzyloxy-tetrahydro-pyran-3-yl ester
- Guidance literature:
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Multi-step reaction with 7 steps
1: TsOH*H2O / tetrahydrofuran
2: DMAP, pyridine
3: 1) NaBH3CN, powdered molecular sieves 4A, HCl, 2) NaH / 1) THF, 2) DMF
5: CCl4, (Me2N)3P / THF
6: 75 percent / silver triflate, MS4A / CH2Cl2; toluene / -50 °C
7: 1) LiOH, 30percent H2O2, 2) KI, Ag2O / 1) THF, 2) DMF
With
pyridine; hydrogenchloride; tetrachloromethane; dmap; lithium hydroxide; 4 A molecular sieve; dihydrogen peroxide; silver trifluoromethanesulfonate; sodium hydride; sodium cyanoborohydride; toluene-4-sulfonic acid; potassium iodide; silver(l) oxide; Hexamethylphosphorous triamide;
In
tetrahydrofuran; dichloromethane; toluene;
DOI:10.1016/S0040-4039(00)61200-5