Sulfuric Acid → CID 3084433

HRID 1758117Notes

Reaction equation

HRID 1758117 reaction equation
S(=O)(=O)(O)O.[B-](F)(F)(F)F.[Na+].[O:12]1[CH2:16][CH2:15][CH2:14][CH2:13]1>>[CH3:13][CH2:14][CH2:15][CH2:16][O:12][C@H:15]([CH2:16][OH:12])[CH2:14][CH3:13]

Participants

4

Reactant 3

HCID 1118Sulfuric AcidHCID 8028TetrahydrofuranHCID 4343483Sodium Tetrafluoroborate

Product 1

HCID 3084433CID 3084433

Procedure

In the same reaction apparatus as in Example 4, a mixture of 50 g of 25% fuming sulfuric acid and 1.75 g of sodium borofluoride was dropwise added to 250 g of tetrahydrofuran at 0° C. over a period of one hour, and they were subjected to reaction at the same temperature for 2 hours. The final conversion was 66%, and the reaction system was solidified to form a wax-like mass. This product was then treated similarly to Example 4 to obtain colorless PTMG. The results of the analyses of the thus obtained PTMG and the catalytic efficiency α were as shown in Table 1.

Workup

  1. customthey were subjected to reaction at the same temperature for 2 hours
  2. customto form a wax-like mass
  3. additionThis product was then treated similarly to Example 4

Sources & evidence

ORD record
ord-ffaa0625b1ec4a96828ad553d5a135fb
Source dataset
uspto-grants-1983_02
Patent number
US04371713

Reaction notes

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