Water → HCID 21471776, compound

HRID 2294839Notes

Reaction equation

HRID 2294839 reaction equation
[Cl:1][CH2:2][C:3]([C:5]1[S:15][C:8]2[C:9](=[O:14])[NH:10][CH2:11][CH2:12][CH2:13][C:7]=2[CH:6]=1)=O.O>C([SiH](CC)CC)C.FC(F)(F)C(O)=O>[Cl:1][CH2:2][CH2:3][C:5]1[S:15][C:8]2[C:9](=[O:14])[NH:10][CH2:11][CH2:12][CH2:13][C:7]=2[CH:6]=1

Participants

5

Reactant 2

HCID 962WaterHCID 21472076HCID 21472076, compound

Product 1

HCID 21471776HCID 21471776, compoundYield 47.5%

Reagents, catalysts & solvents 2

HCID 6422Trifluoroacetic acidSolventHCID 12052TriethylsilaneSolvent

Conditions

Temperature
50 °C

Procedure

A mixture of 1.9 g of 2-chloroacetyl-4,5,6,7-tetrahydro-8H-thieno[2,3-c]azepin-8-one in 5.4 ml of triethylsilane and 15 ml of trifluoroacetic acid was stirred at 50° C. for 12 hours. The mixture was poured into water, alkali fled and extracted with ethyl acetate. The exract was washed with water, dried and concentrated. The residue was purified by column chromatography on a silica gel to give 0.85 g of 2-chloroethyl-4,5,6,7-tetrahydro-8H-thieno[2,3-c]azepin-8-one as white crystals, m.p. 156°-158° C.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe exract was washed with water
  3. customdried
  4. concentrationconcentrated
  5. customThe residue was purified by column chromatography on a silica gel

Sources & evidence

ORD record
ord-09b60a0492ae461b8792a2df72aaa64c
Source dataset
uspto-grants-1997_11
Patent number
US05691330

Reaction notes

Loading…