Diastereomeric Tetrahydropyranyl Ethers of Hydroquinone<sup>1a</sup>
作者:Robert Stern、James English、Harold G. Cassidy
DOI:10.1021/ja01578a056
日期:1957.11
Cyanato Group-Containing Cyclic Phosphazene Compound and Method for Producing The Same
申请人:Tada Yuji
公开号:US20090170983A1
公开(公告)日:2009-07-02
A phosphazene compound, which can effectively enhance flame retardancy without deteriorating mechanical properties of a resin molded product, and is also less likely to deteriorate thermal reliability and dielectric properties, is represented by the formula (1) shown below. n represents an integer of 3 to 15.
wherein A represents a group selected from the group consisting of an alkoxy group, an aryloxy group and a group having a cyanato group, and at least one is a group having a cyanato group, and an example of A is a cyanatophenyl-substituted phenyloxy group represented by the formula (4) shown below, and Y in the formula (4) represents O, S, SO
2
, CH
2
, CHCH
3
, C(CH
3
)
2
, C(CF
3
)
2
, C(CH
3
)CH
2
CH
3
or CO.
US7767739B2
申请人:——
公开号:US7767739B2
公开(公告)日:2010-08-03
Sequences in Dendrons and Dendrimers
作者:Kulandaivelu Sivanandan、Britto S. Sandanaraj、S. Thayumanavan
DOI:10.1021/jo049878p
日期:2004.4.1
incorporation of a variety of functional groups forms the basis for specificity in biomacromolecules. Introduction of such diversity and sequencing ability in artificial macromolecules is fundamentally interesting. In this paper, three different synthetic approaches have been used to build dendrons and dendrimers in which all the monomer units are different from each other. The synthetic strategies described