2,2-Dimethyl-1,3-dioxane-4,6-dione → HCID 13659952, compound

HRID 1981365Notes

Reaction equation

HRID 1981365 reaction equation
[C:1]1([C:7]2[S:8](=[O:21])(=[O:20])[C:9]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)=[CH:10][C:11](=O)[CH:12]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:22][C:23]1([CH3:31])[O:30][C:28](=[O:29])[CH2:27][C:25](=[O:26])[O:24]1>N1CCCCC1>[C:14]1([C:9]2[S:8](=[O:21])(=[O:20])[C:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)=[CH:12][C:11](=[C:27]3[C:28](=[O:29])[O:30][C:23]([CH3:31])([CH3:22])[O:24][C:25]3=[O:26])[CH:10]=2)[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1

Participants

4

Reactant 2

HCID 162492,2-Dimethyl-1,3-dioxane-4,6-dioneHCID 1425134H-Thiopyran-4-one, 2,6-diphenyl-, 1,1-dioxide

Product 1

HCID 13659952HCID 13659952, compound

Reagents, catalysts & solvents 1

HCID 8082PiperidineCatalyst

Procedure

A mixture of 1.32 gm (5 mmol) of the Compound of Example 1, 0.80 gm (5.5 mmol) of Meldrum's acid, 10 ml of alcohol and 5 drops of piperidine was refluxed for 1 hour, allowed to stand overnight and the yellow solid titled compound was collected. The solid was recrystallized from alcohol (mp 214°-215° C.).

Workup

  1. temperaturewas refluxed for 1 hour
  2. customthe yellow solid titled compound was collected
  3. customThe solid was recrystallized from alcohol (mp 214°-215° C.)

Sources & evidence

ORD record
ord-e7b261c122bb49798450f00ea59ade15
Source dataset
uspto-grants-1985_04
Patent number
US04514481

Reaction notes

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