CAMPHOR-DERIVED COMPOUNDS, METHOD FOR MANUFACTURING THE SAME, AND APPLICATION THEREOF
申请人:UANG Biing-Jiun
公开号:US20120077976A1
公开(公告)日:2012-03-29
Camphor-derived compounds are disclosed, which are represented as the following formula (I):
wherein R
1
, R
2
, R
3
, and R
4
each are defined as described in the specification. In addition, a method for manufacturing the camphor-derived compounds and application thereof are disclosed.
CAMPHOR-DERIVED BETA-AMINO ALCOHOL COMPOUNDS, METHOD FOR MANUFACTURING THE SAME AND ASYMMETRIC ADDITION OF ORGANOZINC TO ALDEHYDES USING THE SAME
申请人:UANG Biing-Jiun
公开号:US20110313159A1
公开(公告)日:2011-12-22
A novel camphor-derived β-amino alcohol compound is disclosed. The novel camphor-derived β-amino alcohol compound can be used in asymmetric addition of organozinc to aromatic and aliphatic aldehydes, including linear aliphatic ones, thus generating corresponding secondary alcohols in high yields and enantiomeric excess.
A ligand‐controlled regiodivergent and enantioselectivecopper‐catalyzed intermolecular hydroallylation of alkynes with allylic phosphates and hydrosilanes has been achieved for the first time. The chiral bidentate sulfonate‐containing N‐heterocyclic carbene ligated CuCl complex leads to enantioenriched SN2′‐type products, whereas the use of the IMesCuCl catalyst affords SN2‐type products. Thus a range
炔烃与烯丙基磷酸酯和氢硅烷的配体控制的区域发散性和对映选择性铜催化的分子间氢化反应已经实现。含手性双齿磺酸盐的N杂环卡宾连接的CuCl配合物可生成对映体富集的S N 2'型产物,而IMesCuCl催化剂的使用可提供S N 2型产物。因此,可以容易地从易得的炔烃以区域发散的方式容易地合成一系列手性支化和非手性线性1,4-二烯。
Processes for Highly Enantio- and Diastereoselective Synthesis of Acyclic Epoxy Alcohols and Allylic Epoxy Alcohols
申请人:Walsh Patrick
公开号:US20090163728A1
公开(公告)日:2009-06-25
The inventive subject matter relates to novel processes for making an epoxy alcohol from an aldehyde, comprising the steps of: (a) adding (i) an organozinc compound or (ii) divinylzinc compound and an diorganozinc compound to said aldehyde in the presence of a first catalyst to form an allylic alkoxide compound; and (b) epoxidizing said allylic alkoxide compound in the presence of an oxidant and a second catalyst.