Carbohydrate Research p. 257 - 266 (1991)
Update date:2022-08-17
Topics:
Wenz, Gerhard
Cyclomalto-hexa-, -hepta-, and -octa-ose (cyclodextrins; α-, β-, and γ-CD) were alkylated severally using propyl, butyl, pentyl, 3-methylbutyl, and dodecyl bromides and NaOH in methyl sulfoxide at 23 deg C.After reaction for 3-9 days, the per(2,6-di-O-alkyl)-CDs were formed.The regiospecifity of these alkylations was higher than for methylations.The best yields of crystalline products were obtained for the butyl derivatives of α- and β-CD (37percent and 41percent, respectively).The homogeneity of the pattern of substitution was verified by degradation analysis, f.a.b.-m.s., and n.m.r. spectroscopy.
View MoreShenzhen Sunrising Industry Co., ltd.
Contact:+86 755 86571158 / 86571159 / 86571160
Address:2108 ZHENYE INT. BUSINESS CENTER,NO.3101-90 QIANHAI RD, NANSHAN,SHENZHEN, CHINA
Shandong Dayi Chemical Co., Ltd.
website:http://www.dayi.com.cn
Contact:+86- 535-7388728. 15306386031
Address:No 1 Danya west road, Laiyang City, Shandong province
JOY (TIANJIN) TECHNOLOGY AND DEVELOPMENT CO., LTD.
Contact:+86-22-66666666
Address:Tianjin
Improve Medical Technology(Nanxiong) Co., Ltd
Contact:86-751-3836997
Address:No.33, Pingan First Road, Fine Chemical Industry Base, Nanxiong City, Shaoguan, Guangdong, China
Anhui New Star Pharmaceutical Development Co., Ltd
Contact:013956922763
Address:Floor 3, F9A, F Workshop, No.110 Kexue Road, High-Tech Development Zone, Hefei, Anhui ,China
Doi:10.1016/S0040-4039(97)01578-5
(1997)Doi:10.3762/bjoc.13.40
(2017)Doi:10.1021/ja01437a010
(1921)Doi:10.1021/ol050778v
(2005)Doi:10.1177/000348940111001014
()Doi:10.1039/d0gc01274b
(2020)