二乙酸碘苯及其应用
(2012-10-12 14:00:06)
标签:
杂谈 |
中文名称:二乙酸碘苯,≥99%
中文别名:碘苯二乙酸,二乙酰氧基碘苯,二乙酸亚碘酰苯醋酸碘苯
英文名称:Iodobenzene diacetate
英文别名:Iodosobenzene diacetate
分子式:C6H5I(O2CCH3)2
纯度:≥99%
CAS号:3240-34-4
分子式:C10H11IO4
分子量:322.10
EINECS登录号:221-808-1
结构式:
外观:白色至类白色结晶性粉末
熔点:159 -165°C
纯度:≥99%
干燥失重:≤0.5%
常温下密封避光保存
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邮编: 201512
最新的应用:
LiBr is an efficient catalyst for the dihydroxylation of alkenes to
afford either syn or anti diols with excellent
diastereoselectivity depending upon the use of NaIO4 or
PhI(OAc)2 as the oxidants.
L. Emmanuvel, T. M. A. Shaikh, A. Sudalai, Org. Lett.,
2005, 7, 5071-5074.
Selective syn and anti diacetoxylations of alkenes
have been achieved using a
PhI(OAc)2/BF3·OEt2 system in the
presence and absence of water, respectively. A broad range of
substrates including electron-deficient alkenes furnishes the
desired products in good to excellent yields and
diastereoselectivity. This novel methodology provides an
alternative approach for the preparation of various
1,2-diols.
W. Zhong, J. Yang, X. Meng, Z. Li, J. Org.
Chem., 2011, 76, 9997-10004.
A one-pot two-step sequence involving an
oxidation/imine-iminium formation/reduction allowed the
N-alkylation of amines by alcohols. Optically active
alcohols and amines can be converted without any
epimerization.
C. Guérin, V. Bellosta, G. Guillamot, J. Cossy, Org. Lett.,
2011, 13, 3478-3481.
A catalytic Mitsunobu reaction system is described in which the azo
reagent is used as an organocatalyst and iodosobenzene diacetate is
used as the stoichiometric oxidant. Yields obtained in the
catalytic reactions of carboxylic acids and alcohols were slightly
lower than those obtained from corresponding stoichiometric
reactions.
T. Y. S. But, P. H. Toy, J. Am. Chem. Soc., 2006,
128, 9636-9637.
Phenyliodonium ylides provide easy access to various
1,1-cyclopropane diesters using rhodium or copper catalysis and are
safer and convenient alternatives to the corresponding diazo
compounds. Moreover, the iodonium ylide of dimethyl malonate was
obtained in 78% yield using improved conditions that involve a
simple filtration step to isolate the desired
product.
S. R. Goudreau, D. Marcoux, A. B. Charette,
J. Org. Chem., 2009, 74, 470-473.