Dimethyl Carbonate → Dimethyl carbonate--hexane-1,6-diol (1/1)

HRID 1722416

反応式

HRID 1722416 の反応式
[CH2:1]([OH:8])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][OH:7].[C:9](=[O:14])([O:12][CH3:13])[O:10][CH3:11].C[O-].C([Sn+2]CCCC)CCC.C[O-]>>[CH2:1]([OH:8])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][OH:7].[CH3:11][O:10][C:9](=[O:14])[O:12][CH3:13]

参加物

4

反応物 3

HCID 12021Dimethyl CarbonateHCID 123741,6-HexanediolHCID 16049892Dibutyltin methoxide

生成物 1

HCID 44150890Dimethyl carbonate--hexane-1,6-diol (1/1)

反応条件

温度
220 °C

実験手順

391 g (3.32 moles) of 1,6-hexanediol, 5976 g (66.4 moles) of dimethyl carbonate and 0.2 g (0.00067 mole) of dibutyltin methoxide were charged in an autoclave. The mixture was heated at 220° C. for 3 hours to advance a reaction. After completion of the reaction, the dimethyl carbonate was removed by evaporation under reduced pressure to obtain a 1,6-hexanediol bismethylcarbonate. The yield of 1,6-hexanediol bismethylcarbonate was 98.0%. A 1,5-pentanediol bismethylcarbonate was also obtained in substantially the same manner as mentioned above except that 1,5-pentane diol was used instead of 1,6-hexane diol.

後処理

  1. customa reaction
  2. customAfter completion of the reaction
  3. customthe dimethyl carbonate was removed by evaporation under reduced pressure

出典と根拠

ORDレコード
ord-ef45616f6a7c4a91900eaf9db2c126b2
出典データセット
uspto-grants-1989_08
特許番号
US04855377

関連ノート

読み込み中…