1,6-Hexanediol → Cholest-5-en-3alpha-yl 6-hydroxyhexyl Ether

HRID 1449167Notes

Reaction equation

HRID 1449167 reaction equation
S([O:11][C@H:12]1[CH2:36][CH2:35][C@@:34]2([CH3:37])[C:14](=[CH:15][CH2:16][C@@H:17]3[C@@H:33]2[CH2:32][CH2:31][C@@:30]2([CH3:38])[C@H:18]3[CH2:19][CH2:20][C@@H:21]2[C@H:22]([CH3:29])[CH2:23][CH2:24][CH2:25][CH:26]([CH3:28])[CH3:27])[CH2:13]1)(C1C=CC(C)=CC=1)(=O)=O.[CH2:39](O)[CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][OH:45].O1CCOCC1>CCCCCC>[OH:45][CH2:44][CH2:43][CH2:42][CH2:41][CH2:40][CH2:39][O:11][C@@H:12]1[CH2:36][CH2:35][C@@:34]2([CH3:37])[C:14](=[CH:15][CH2:16][C@@H:17]3[C@@H:33]2[CH2:32][CH2:31][C@@:30]2([CH3:38])[C@H:18]3[CH2:19][CH2:20][C@@H:21]2[C@H:22]([CH3:29])[CH2:23][CH2:24][CH2:25][CH:26]([CH3:28])[CH3:27])[CH2:13]1

Participants

5

Reactant 3

HCID 123741,6-HexanediolHCID 312751,4-DioxaneHCID 109076511182-65-6

Product 1

HCID 131711720Cholest-5-en-3alpha-yl 6-hydroxyhexyl EtherYield 52%

Reagents, catalysts & solvents 1

HCID 8058HexaneSolvent

Procedure

Using the procedure of Davis, J. Chem. Soc. 178-181 (1962), cholesterol tosylate and 1,6-hexanediol were condensed in refluxing dioxane to provide 52% yield of the title ether as colorless plates from hexane, m.p. 79.5°-81° C.; [α]D25 -28.1°±0.5° C.; IR 3500-3200 (OH), 1100 and 1080 cm-1 (ether); NMR (CDCL3): δ2.8-3.3 (br, 1H, H-1), 3.3-3.75 (2t,4H), 5.4 m, 1H).

Workup

  1. customcondensed

Sources & evidence

ORD record
ord-69f4d98610b244c2afceee564fc7406b
Source dataset
uspto-grants-1980_02
Patent number
US04189471

Reaction notes

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