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18162-48-6872-50-4Methylene ChloridenaphthaleneTHFTitanium Dioxide
122616-17-5

(1S,4AS,7AS)-METHYL 1-(TERT-BUTYLDIMETHYLSILYLOXY)-7-((TERT-BUTYLDIMETHYLSILYLOXY)METHYL)-1,4A,5,7A-TETRAHYDROCYCLOPENTA[C]PYRAN-4-CARBOXYLATE synthesis

1synthesis methods
Cyclopenta[c]pyran-4-carboxylic acid, 1,4a,5,7a-tetrahydro-1-hydroxy-7-(hydroxymethyl)-, methyl ester, (4aS,7aS)-

224055-63-4
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18162-48-6 Synthesis
tert-Butyldimethylsilyl chloride

18162-48-6
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116287-88-8 Synthesis
(1S,4AS,7AS)-METHYL 1-(TERT-BUTYLDIMETHYLSILYLOXY)-7-(HYDROXYMETHYL)-1,4A,5,7A-TETRAHYDROCYCLOPENTA[C]PYRAN-4-CARBOXYLATE

116287-88-8
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(1S,4AS,7AS)-METHYL 1-(TERT-BUTYLDIMETHYLSILYLOXY)-7-((TERT-BUTYLDIMETHYLSILYLOXY)METHYL)-1,4A,5,7A-TETRAHYDROCYCLOPENTA[C]PYRAN-4-CARBOXYLATE

122616-17-5
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Yield:-

Reaction Conditions:

with pyridinium p-toluenesulfonate;silver nitrate1.) DMF, room temp.; 2.) EtOH, 25 deg C, 2 days;Yield given. Multistep reaction;

References:

Ge;Kondo;Katsumura;Nakatani;Isoe [Tetrahedron,1993,vol. 49,# 46,p. 10555 - 10576]