One‐step conversion of amides and esters to acid chlorides with PCl3

2021 ◽  
Author(s):  
Fangshao Li ◽  
Xiaofang Wu ◽  
Fengzhe Guo ◽  
Zi-Long Tang ◽  
Jing Xiao
Keyword(s):  
Acid Chlorides ◽  
One Step

One-Step Synthesis of α-Chloro Acetophenones from Acid Chlorides and Aryl Precursors

2007 ◽  
Vol 9 (4) ◽  
pp. 667-669 ◽  
Author(s):  
Jonathan Rosen ◽  
Dietrich Steinhuebel ◽  
Michael Palucki ◽  
Ian Davies
Keyword(s):  
Acid Chlorides ◽  
One Step

The Acrylation, Methacrylation, and Acrylamidomethylation of Cellulose

1969 ◽  
Vol 39 (1) ◽  
pp. 78-85 ◽  
Author(s):  
G. Sumrell ◽  
M. F. Margavio ◽  
C. M. Welch
Keyword(s):  
Hydrogen Sulfide ◽  
Acid Catalyst ◽  
Zinc Nitrate ◽  
The Other ◽  
Cross Linking ◽  
Acid Chlorides ◽  
Sodium Hydrogen ◽  
Ionic Mechanisms ◽  
One Step ◽  
Acid Catalyzed

Partially acrylated and methacrylated cottons have been prepared from the respective acid chlorides and cotton fabric in the presence of various bases. Some of the physical properties of these materials were determined, and the acrylates were cross-linked through the double bond by two methods to give materials with wrinkle recoveries in the wash-wear range. One of the methods utilized sodium hydrogen sulfide as the cross-linking agent, and the other involved an over-cure with zinc nitrate as an acid catalyst. The latter method was also used to bring about a cross-linking reaction between cotton and N-methylolacrylamide by a one-step cure to give cottons with high wrinkle recoveries. The acid-catalyzed addition of acrylamide to cotton also was demonstrated. This process involved free radical as well as ionic mechanisms.

scholarly journals One-Step Synthesis of α-Chloro Acetophenones from Acid Chlorides and Aryl Precursors.

ChemInform ◽  
2007 ◽  
Vol 38 (27) ◽  
Author(s):  
Jonathan Rosen ◽  
Dietrich Steinhuebel ◽  
Michael Palucki ◽  
Ian Davies
Keyword(s):  
Acid Chlorides ◽  
One Step

First Reaction of a Bare Silicon Surface with Acid Chlorides and a One-Step Preparation of Acid Chloride Terminated Monolayers on Scribed Silicon

Langmuir ◽  
2005 ◽  
Vol 21 (6) ◽  
pp. 2093-2097 ◽  
Author(s):  
Yit-Yian Lua ◽  
W. Jonathan J. Fillmore ◽  
Li Yang ◽  
Michael V. Lee ◽  
Paul B. Savage ◽  
...  
Keyword(s):  
Acid Chloride ◽  
Silicon Surface ◽  
Acid Chlorides ◽  
One Step

scholarly journals Antidiabetic Activity of Lupeol and Lupeol Esters in Streptozotocin- Induced Diabetic Rats

2015 ◽  
Vol 17 (2) ◽  
pp. 138-146 ◽  
Author(s):  
Vijai Lakshmi ◽  
Abbas Ali Mahdi ◽  
Mohammad Kaleem Ahmad ◽  
Santosh Kumar Agarwal ◽  
Arvind Kumar Srivastava
Keyword(s):  
Ethanol Extract ◽  
Pharmaceutical Journal ◽  
Chemotherapeutic Agents ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Long Chain Fatty Acids ◽  
Acid Chlorides ◽  
Pharmacological Activities ◽  
One Step ◽  
Derivatives Of

Currently, natural products have been shown to present interesting biological and pharmacological activities and are also used as chemotherapeutic agents. Plants have been used in treating cancer, cardiovascular disorders, tuberculosis and many other diseases. Therefore, the current study was designed to evaluate the antidiabetic potential of lupeol and its semisynthetic derivatives to get a new and potent antidiabetic agent. The ethanol extract of Crataeva nurvala, its hexane and chloroform soluble fractions and lupeol isolated from the extractives were evaluated.. Lupeol derivatives were prepared through a one-step reaction with acid chlorides, long chain fatty acids and aromatic moieties. A series of ester derivatives of lupeol were assayed for antidiabetic activity in (STZsucrose model rats. Few derivatives of lupeol showed more potent activity as compared to the basic molecule, lupeol. The results of the present study clearly indicated that the ethanol extract, fractions and lupeol isolated from C. nurvala and synthetic lupeol analogs possess significant antidiabetic activity. The models used for studying theantidiabetic activities have already been validated. In our studies, it was found that the ester derivatives of lupeol posses better antidiabetic potential when compared to lupeol. It is thus concluded that lupeol skeleton deserves further investigation for the development of more potent and non-toxic new antidiabetic agents for therapeutic applications. DOI: http://dx.doi.org/10.3329/bpj.v17i2.22330 Bangladesh Pharmaceutical Journal 17(2): 138-146, 2014

An Interactive Minicomputer Program for the Indexing and Simulation of Electron Diffraction Patterns

1976 ◽  
Vol 34 ◽  
pp. 542-543
Author(s):  
R.P. Goehner ◽  
W.T. Hatfield ◽  
Prakash Rao
Keyword(s):  
Electron Diffraction ◽  
Real Time ◽  
Pattern Analysis ◽  
Flow Diagram ◽  
Hard Copy ◽  
Time Analysis ◽  
Real Time Analysis ◽  
Transmission Electron ◽  
One Step ◽  
Diffraction Patterns

Computer programs are now available in various laboratories for the indexing and simulation of transmission electron diffraction patterns. Although these programs address themselves to the solution of various aspects of the indexing and simulation process, the ultimate goal is to perform real time diffraction pattern analysis directly off of the imaging screen of the transmission electron microscope. The program to be described in this paper represents one step prior to real time analysis. It involves the combination of two programs, described in an earlier paper(l), into a single program for use on an interactive basis with a minicomputer. In our case, the minicomputer is an INTERDATA 70 equipped with a Tektronix 4010-1 graphical display terminal and hard copy unit.A simplified flow diagram of the combined program, written in Fortran IV, is shown in Figure 1. It consists of two programs INDEX and TEDP which index and simulate electron diffraction patterns respectively. The user has the option of choosing either the indexing or simulating aspects of the combined program.

Nutrient-regulated gene expression in eukaryotes

2006 ◽  
Vol 73 ◽  
pp. 85-96 ◽  
Author(s):  
Richard J. Reece ◽  
Laila Beynon ◽  
Stacey Holden ◽  
Amanda D. Hughes ◽  
Karine Rébora ◽  
...  
Keyword(s):  
Gene Expression ◽  
Rna Polymerase ◽  
Rna Polymerase Ii ◽  
Transcriptional Control ◽  
Direct Interaction ◽  
Signalling Pathways ◽  
A Cell ◽  
One Step ◽  
Higher Eukaryotes ◽  
Regulated Gene Expression

The recognition of changes in environmental conditions, and the ability to adapt to these changes, is essential for the viability of cells. There are numerous well characterized systems by which the presence or absence of an individual metabolite may be recognized by a cell. However, the recognition of a metabolite is just one step in a process that often results in changes in the expression of whole sets of genes required to respond to that metabolite. In higher eukaryotes, the signalling pathway between metabolite recognition and transcriptional control can be complex. Recent evidence from the relatively simple eukaryote yeast suggests that complex signalling pathways may be circumvented through the direct interaction between individual metabolites and regulators of RNA polymerase II-mediated transcription. Biochemical and structural analyses are beginning to unravel these elegant genetic control elements.

CAD: One Step Forward, One Step Back

2010 ◽  
Vol 43 (18) ◽  
pp. 16
Author(s):  
MATTHEW R.G. TAYLOR
Keyword(s):  
One Step
Sign in / Sign up

Export Citation Format

Share Document