PHOTOTHERMOGRAPHIC MATERIALS CONTAINING CO-DEVELOPERS WITH PHOSPHONIUM CATION
申请人:Simpson Sharon M.
公开号:US20080145788A1
公开(公告)日:2008-06-19
Incorporating a combination of a trisphenol reducing agent (developer) and a substituted olefinic co-developer having a phosphonium cation in photothermographic materials improves image tone in resulting images.
PHOTOTHERMOGRAPHIC MATERIALS CONTAINING DEVELOPER AND CO-DEVELOPER
申请人:Zou Chaofeng
公开号:US20080145801A1
公开(公告)日:2008-06-19
Use of a combination of a trisphenol reducing agent (developer) and a substituted olefinic co-developer in photothermographic materials reduces their sensitivity to high humidity and improves processing latitude.
Photothermographic materials containing co-developers with phosphonium cation
申请人:Carestream Health, Inc.
公开号:US07482113B2
公开(公告)日:2009-01-27
Incorporating a combination of a trisphenol reducing agent (developer) and a substituted olefinic co-developer having a phosphonium cation in photothermographic materials improves image tone in resulting images.
Reactions of α-chloro β-oxo aldehydes with CH-acid anions
作者:F. I. Guseinov
DOI:10.1007/bf02496260
日期:1999.4
The reactions of alpha-chloro and alpha,alpha-dichloro beta-oxo aldehydes with carbanions are accompanied by the cleavage of the carbon-carbon bond in the chloro aldehydes and result in formylation of CH-acids. These electrophiles react with carbanions, which are generated in situ from CH-acids in the presence of AcONa in aprotic solvents, to form polyfunctional hydroxy compounds.
Panizzi, Gazzetta Chimica Italiana, 1947, vol. 77, p. 206,212