Lithium → HCID 70466798, compound

HRID 1461988Notes

Reaction equation

HRID 1461988 reaction equation
[CH2:1]1[C@H:3]2[C:4](=[O:28])[CH2:5][C@H:6]3[C@:19]([CH3:20])([C@@H:2]12)[C@@H:18]1[C@H:9]([C@H:10]2[C@@:14]([CH2:16][CH2:17]1)([CH3:15])[C@@H:13]([O:21][CH:22]1[CH2:27][CH2:26][CH2:25][CH2:24][O:23]1)[CH2:12][CH2:11]2)[CH2:8][CH2:7]3.[Li]>O1CCCC1.C(OCC)C>[CH2:1]1[C@H:3]2[CH:4]([OH:28])[CH2:5][C@H:6]3[C@:19]([CH3:20])([C@@H:2]12)[C@@H:18]1[C@H:9]([C@H:10]2[C@@:14]([CH2:16][CH2:17]1)([CH3:15])[C@@H:13]([O:21][CH:22]1[CH2:27][CH2:26][CH2:25][CH2:24][O:23]1)[CH2:12][CH2:11]2)[CH2:8][CH2:7]3

Participants

5

Reactant 2

HCID 3028194LithiumHCID 70466324HCID 70466324, compound

Product 1

HCID 70466798HCID 70466798, compoundYield 99.5%

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 8028TetrahydrofuranSolvent

Procedure

9.0 g of 1α,2α-methylene-17β-(tetrahydropyran-2-yloxy)-5α-androstan-3-one is stirred in 90 ml of tetrahydrofuran with 10 g of lithium tri-tert-butoxyalanate for 2.5 hours at room temperature. The reaction solution is diluted with diethyl ether, washed with 2N sulfuric acid and water, dried, and evaporated, yielding as a residue 9.0 g of 1α,2α-methylene-17β-(tetrahydropyran-2-yloxy)-5α-androstan-3-ol.

Workup

  1. washwashed with 2N sulfuric acid and water
  2. customdried
  3. customevaporated

Sources & evidence

ORD record
ord-e85f1d8e5b564440a2104593420aa960
Source dataset
uspto-grants-1984_07
Patent number
US04457925

Reaction notes

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