The molecular crystal structure and self-assembly behavior of 6I-O-(3-nitrophenyl)cyclomaltoheptaose

Fan, Zhi; Jing, Zuo‐Liang; Diao, Chun-Hua

doi:10.1016/j.carres.2004.12.004

Cited by 3 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 HNMR spectroscopy is one of the most powerful tools for the determination of the molecular structure of an unknown substance. 17 As is clearly shown in Figure 3, m/z 340 represents the molecular ion peak of GM, which can be a preliminary judge for obtaining an objective product. Then, the structural information is further offered by fragment ions.…”

Section: Resultsmentioning

confidence: 99%

“…Figure shows the 1 HNMR spectrum of GM (solvent, DMSO). 1 HNMR spectroscopy is one of the most powerful tools for the determination of the molecular structure of an unknown substance . Figure illustrates the structural formula of GM and the chemical shift values of all the protons existing in its molecular structure of GM: A–H (4.37 ppm); B–H (4.35 ppm); C–H (3.32 ppm); D–H (2.62 ppm); E–H (2.77 ppm); J–H (2.33 ppm); K–H (1.52 ppm); L–H (1.25 ppm); M–H (1.23 ppm); N–H (0.85 ppm).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Monitoring the Effects of Hydroxypropyl-β-cyclodextrin as a Biomimic Catalyst (Phase Transfer Catalyst) for Glycidyl Monostearate Synthesis

Zou

Zuo

2015

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Due to the special cavity structure, cyclodextrins become the perfect candidates for biomimic catalyst acting like enzymes. In this paper, hydroxypropyl-β-cyclodextrin (HP-β-CD) is used as a phase transfer catalyst for the preparation of glycidyl monostearate (GM) from SN2 substitution reaction by means of the formation of an inclusion complex. FT-IR, 1HNMR, and GC-MS characterization verified the formation of GM. The calculated inclusion constants of HP-β-CD/epichlorohydrin and HP-β-CD/GM inclusion complex were 6.377 and 6709.4 L/mol, respectively. Then, a series of characterizations further demonstrated the formation of a stable inclusion complex. Therefore, the catalytic mechanism of GM synthesis using HP-β-CD as catalyst was confirmed. The experimental results show the yield of GM can reach 92.6% under the optimum reaction conditions. The kinetics demonstrates the interactions between HP-β-CD and substrate. The feasibility of HP-β-CD as a biomimic catalyst will provide a new direction for the synthesis of monoglyceride.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%