microwave‐irradiated alcohol‐protecting strategy based on goldcatalysis utilizing benzyl alcohol, tert‐butyl alcohol and triphenylmethanol as alkylating reagents has been developed. This protecting strategy has wide functional group tolerance with satisfactory yields for the majority of the selected alcohols. The mechanism of this transformation was probed with oxygen‐18 isotope labelled alcohols assisted by
Cerium(IV), as a selective and efficient catalyst for alcoholyses of allylic and tertiary benzylic alcohols
作者:Nasser Iranpoor、Enayatholah Mothaghineghad
DOI:10.1016/s0040-4020(01)80857-7
日期:1994.1
An efficient and selective method is described for the catalytic conversion of allylic, and tertiary benzylic alcohols into their corresponding ethers in the presence of Ce(IV) under solvolytic and non-solvolytic conditions.
Provided are a solid-phase carrier for solid-phase synthesis of nucleic acid having improved amino group reactivity, and an aminated oligonucleotide to which an amino group has been attached. The present invention relates to an aminated oligonucleotide represented by formula (I).
Procédé pour la polymérisation stéréospécifique des alpha-oléfines et système catalytique utilisable pour cette polymérisation
申请人:SOLVAY (Société Anonyme)
公开号:EP0288109A1
公开(公告)日:1988-10-26
Procédé pour la polymérisation des alpha-oléfines effectué en présence d'un système catalytique comprenant :
(a) un solide à base de trichlorure de titane complexé;
(b) un composé organométallique de métaux des groupes IA, IIA, IIB et IIIB du Tableau Périodique, et en outre
(c) un composé oxygéné organique du silicium.
Ce procédé permet de polymériser le propylène avec une activité catalytique améliorée.
申请人:National Institute of Advanced Industrial Science
and Technology
公开号:EP1908829A1
公开(公告)日:2008-04-09
An aminated oligonucleotide probe is provided, in which the amino group possesses improved reactivity. The present invention relates to an oligonucleotide probe, which is represented by general formula 1:
(wherein R1 is a hydrogen atom or a protecting group for an amino group, R2 and R3 are each independently a divalent organic group, and A is an oligonucleotide).