Et3B-promoted, Pd-catalyzed C-allylation of o-hydroxyacetophenone and its derivatives with allyl alcohols
摘要:
Triethylborane promotes the Pd-catalyzed selective C-diallylation of o-hydroxyacetophenone and C-monoallylation of o-hydroxypropiophenone with a variety of ally alcohols. The reaction proceeds smoothly at 25-50 degreesC and provides the allylation products in excellent yields, (C) 2001 Elsevier Science Ltd. All rights reserved.
Majumdar; Khan; Chattopadhyay, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1990, vol. 29, # 5, p. 483 - 485
作者:Majumdar、Khan、Chattopadhyay
DOI:——
日期:——
MAJUMDAR, K. C.;KHAN, A. T.;CHATTOPADHYAY, S. K., INDIAN J. CHEM. B, 29,(1990) N, C. 483-485
作者:MAJUMDAR, K. C.、KHAN, A. T.、CHATTOPADHYAY, S. K.
DOI:——
日期:——
INK JET INK COMPOSITION AND METHOD FOR SECURITY MAKING
申请人:Videojet Technologies Inc.
公开号:EP1601729A1
公开(公告)日:2005-12-07
[EN] PHOTOCURABLE COMPOSITION FOR PREPARING LENSES<br/>[FR] COMPOSITION PHOTODURCISSABLE POUR LA PREPARATION DE LENTILLES
申请人:SOLA INT HOLDINGS
公开号:WO2000064956A1
公开(公告)日:2000-11-02
A photocurable composition for preparation of a lens including: a polythiol compound; an aromatic monomer containing at least two vinyl groups; an acrylate monomer containing at least two unsaturated groups and selected from the group consisting of acrylates, methacrylates, acrylic acid anhydrides and methacylic anhydrides; and a photoinitiator.
[EN] INK JET INK COMPOSITION AND METHOD FOR SECURITY MAKING<br/>[FR] COMPOSITION D'ENCRAGE POUR IMPRIMANTE A JET D'ENCRE ET PROCEDE DE FABRICATION SECURITAIRE
申请人:VIDEOJET TECHNOLOGIES LTD
公开号:WO2004081125A1
公开(公告)日:2004-09-23
Disclosed is an ink composition suitable for ink jet printing comprising a luminescent compound, a solvent, and an energy active compound, and optionally a non-luminescent colorant. The energy active compound, when exposed to energy, generates one or more active species that can react with the luminescent compound to alter one or more of the characteristics of the luminescent compound. The luminescent compound can be colored or colorless. Also disclosed is a method for marking substrates comprising providing a mark comprising a luminescent compound and an energy active compound. Further disclosed is a jet ink composition suitable for printing on substrates authentication or security marks which can be rendered unreadable. The luminescence of the mark is quenched and the visible color is changed when irradiated with a light.