2,6-Lutidine → HCID 53652232, compound

HRID 1779938Notes

Reaction equation

HRID 1779938 reaction equation
[Si:1]([O:8][C@H:9]1[CH2:35][CH2:34][C@@:33]2([CH3:36])[C@@H:11]([CH2:12][CH2:13][C@@H:14]3[C@@H:32]2[C@@H:31]([OH:37])[C@@H:30]([O:38][C:39](=[O:41])[CH3:40])[C@@:29]2([CH3:42])[C@H:15]3[CH2:16][C@@H:17]3[O:22][C@@:21]4([O:28][CH2:27][C@H:25]([CH3:26])[CH2:24][CH2:23]4)[C@@H:19]([CH3:20])[C@@H:18]32)[CH2:10]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[CH3:43][Si:44](OS(C(F)(F)F)(=O)=O)([CH3:46])[CH3:45].N1C(C)=CC=CC=1C>C(Cl)Cl>[Si:1]([O:8][C@H:9]1[CH2:35][CH2:34][C@@:33]2([CH3:36])[C@@H:11]([CH2:12][CH2:13][C@@H:14]3[C@@H:32]2[C@@H:31]([O:37][Si:44]([CH3:46])([CH3:45])[CH3:43])[C@@H:30]([O:38][C:39](=[O:41])[CH3:40])[C@@:29]2([CH3:42])[C@H:15]3[CH2:16][C@@H:17]3[O:22][C@@:21]4([O:28][CH2:27][C@H:25]([CH3:26])[CH2:24][CH2:23]4)[C@@H:19]([CH3:20])[C@@H:18]32)[CH2:10]1)([C:4]([CH3:5])([CH3:6])[CH3:7])([CH3:2])[CH3:3]

Participants

5

Reactant 3

HCID 79372,6-LutidineHCID 65367Trimethylsilyl triflateHCID 53967493HCID 53967493, compound

Product 1

HCID 53652232HCID 53652232, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(3β,5α,11β,12β,25R)-3-(t-butyldimethylsilyloxy)-12-acetoxyspirostan-11-ol was silylated with trimethylsilyltriflate and 2,6-lutidine in methylene chloride according to the procedure described in Tetrahedron Letters, 1981, 22, 3455.

Sources & evidence

ORD record
ord-7a3b214cc6ab4fca8e52a0c92fb0f350
Source dataset
uspto-grants-1997_05
Patent number
US05629295

Reaction notes

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