Method for synthesizing sucrose-6-ester

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11142542
APP PUB NO 20210002317A1
SERIAL NO

16981986

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method for synthesizing sucrose-6-ester includes: (a) in the presence of a polar aprotic solvent, contacting an organic phosphine compound represented by formula I with sucrose and an organic tin compound; (b) removing water to obtain a reaction liquid containing a tin-sucrose adduct; and (c) contacting the reaction liquid containing the tin-sucrose adduct with an acid anhydride compound to prepare a sucrose-6-ester. In formula I, R1, R2, and R3 each are a linear or branched alkyl having 1 to 20 carbon atoms, a cycloalkyl having 3 to 10 carbon atoms, or an aryl having 6 to 10 carbon atoms; moreover, the R1, R2, and R3 are identical groups, partially identical groups, or different groups from each other. According to the method, the reaction conversion rate and selectivity are greatly improved; moreover, it is easy to realize industrial application.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SHANDONG NHU FINE CHEMICAL SCIENCE AND TECHNOLOGY COMPANY LTD01156 ZHUJIANG WEST ROAD YANGZI STREET BINHAI DISTRICT WEIFANG SHANDONG 262737

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cai, Jiang Zhejiang, CN 3 3
Ma, Kaifeng Zhejiang, CN 1 0
Wang, Yugang Shandong, CN 57 6248
Wei, Xiaoqiao Zhejiang, CN 9 14
Yang, Yunhan Zhejiang, CN 1 0
Zhou, Yougui Shandong, CN 3 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Apr 12, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 12, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 12, 2033
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00