User-Friendly [(Diglyme)NiBr2]-Catalyzed Direct Alkylations of Heteroarenes with Unactivated Alkyl Halides through CH Bond Cleavages

2011 ◽  
Vol 353 (18) ◽  
pp. 3325-3329 ◽  
Author(s):  
Lutz Ackermann ◽  
Benudhar Punji ◽  
Weifeng Song
Keyword(s):  
Alkyl Halides ◽  
User Friendly

Visible-Light-Driven Reductive Carboarylation of Styrenes with CO2 and Aryl Halides

2019 ◽  
Author(s):  
Hao Wang ◽  
yuzhen gao ◽  
Chunlin Zhou ◽  
Gang Li
Keyword(s):  
Visible Light ◽  
Alkyl Halides ◽  
Aryl Halides ◽  
Addition Reactions ◽  
Aryl Chlorides ◽  
Aryl Iodides ◽  
Visible Light Driven ◽  
User Friendly

The first example of visible-light-driven reductive carboarylation of styrenes with CO<sub>2</sub> and aryl halides in a regioselective manner has been achieved. A broad range of aryl iodides and bromides were compatible with this reaction. <a>Moreover, pyridyl halides, alkyl halides and even aryl chlorides were also viable with this method.</a> These findings may stimulate the exploration of novel visible-light-driven Meerwein arylation-addition reactions with user-friendly aryl halides as the radical sources and the photocatalytic utilization of CO<sub>2.</sub>

Nickel-catalyzed C–H activation of purine bases with alkyl halides

2017 ◽  
Vol 53 (65) ◽  
pp. 9113-9116 ◽  
Author(s):  
Zhixiong Ruan ◽  
Debasish Ghorai ◽  
Giuseppe Zanoni ◽  
Lutz Ackermann
Keyword(s):  
Late Stage ◽  
Fluorescent Labeling ◽  
Alkyl Halides ◽  
Nickel Catalysis ◽  
Purine Bases ◽  
User Friendly

C–H alkylations of purine nucleosides were achieved by means of user-friendly nickel catalysis with ample substrate scope and high levels of chemo, site and regio control, which among others enabled the direct fluorescent labeling of purines in terms of late stage diversification.

User-friendly aerobic reductive alkylation of iridium(iii) porphyrin chloride with potassium hydroxide: scope and mechanism

2015 ◽  
Vol 44 (47) ◽  
pp. 20618-20625 ◽  
Author(s):  
Huiping Zuo ◽  
Zhipeng Liu ◽  
Wu Yang ◽  
Zhikuan Zhou ◽  
Kin Shing Chan
Keyword(s):  
Potassium Hydroxide ◽  
Reducing Agent ◽  
Alkyl Halides ◽  
Reductive Alkylation ◽  
Carbonyl Chloride ◽  
User Friendly

Alkylation of iridium 5,10,15,20-tetrakistolylporphyrinato carbonyl chloride, Ir(ttp)Cl(CO) (1), with 1°, 2° alkyl halides was achieved to give (ttp)Ir-alkyls in good yields under air and water compatible conditions by utilizing KOH as the cheap reducing agent.

Visible-Light-Driven Reductive Carboarylation of Styrenes with CO2 and Aryl Halides

2019 ◽  
Author(s):  
Hao Wang ◽  
yuzhen gao ◽  
Chunlin Zhou ◽  
Gang Li
Keyword(s):  
Visible Light ◽  
Alkyl Halides ◽  
Aryl Halides ◽  
Addition Reactions ◽  
Aryl Chlorides ◽  
Aryl Iodides ◽  
Visible Light Driven ◽  
User Friendly

The first example of visible-light-driven reductive carboarylation of styrenes with CO<sub>2</sub> and aryl halides in a regioselective manner has been achieved. A broad range of aryl iodides and bromides were compatible with this reaction. <a>Moreover, pyridyl halides, alkyl halides and even aryl chlorides were also viable with this method.</a> These findings may stimulate the exploration of novel visible-light-driven Meerwein arylation-addition reactions with user-friendly aryl halides as the radical sources and the photocatalytic utilization of CO<sub>2.</sub>

The Added Value of Graphical Input and Display for Electron Lens Design

1990 ◽  
Vol 48 (1) ◽  
pp. 190-191
Author(s):  
B. Lencova ◽  
G. Wisselink
Keyword(s):  
Flux Density ◽  
Numerical Data ◽  
Added Value ◽  
Lens Design ◽  
Step Size ◽  
Magnetic Lens ◽  
Flux Lines ◽  
Fine Mesh ◽  
Electron Lens ◽  
User Friendly

Recent progress in computer technology enables the calculation of lens fields and focal properties on commonly available computers such as IBM ATs. If we add to this the use of graphics, we greatly increase the applicability of design programs for electron lenses. Most programs for field computation are based on the finite element method (FEM). They are written in Fortran 77, so that they are easily transferred from PCs to larger machines.The design process has recently been made significantly more user friendly by adding input programs written in Turbo Pascal, which allows a flexible implementation of computer graphics. The input programs have not only menu driven input and modification of numerical data, but also graphics editing of the data. The input programs create files which are subsequently read by the Fortran programs. From the main menu of our magnetic lens design program, further options are chosen by using function keys or numbers. Some options (lens initialization and setting, fine mesh, current densities, etc.) open other menus where computation parameters can be set or numerical data can be entered with the help of a simple line editor. The "draw lens" option enables graphical editing of the mesh - see fig. I. The geometry of the electron lens is specified in terms of coordinates and indices of a coarse quadrilateral mesh. In this mesh, the fine mesh with smoothly changing step size is calculated by an automeshing procedure. The options shown in fig. 1 allow modification of the number of coarse mesh lines, change of coordinates of mesh points or lines, and specification of lens parts. Interactive and graphical modification of the fine mesh can be called from the fine mesh menu. Finally, the lens computation can be called. Our FEM program allows up to 8000 mesh points on an AT computer. Another menu allows the display of computed results stored in output files and graphical display of axial flux density, flux density in magnetic parts, and the flux lines in magnetic lenses - see fig. 2. A series of several lens excitations with user specified or default magnetization curves can be calculated and displayed in one session.

A Review of 21 iPad Applications for Augmentative and Alternative Communication Purposes

2012 ◽  
Vol 21 (2) ◽  
pp. 60-71 ◽  
Author(s):  
Ashley Alliano ◽  
Kimberly Herriger ◽  
Anthony D. Koutsoftas ◽  
Theresa E. Bartolotta
Keyword(s):  
Augmentative And Alternative Communication ◽  
Cost Effective ◽  
Alternative Form ◽  
Alternative Communication ◽  
Text To Speech ◽  
Reference Guide ◽  
Expressive Communication ◽  
Communication Needs ◽  
User Friendly ◽  
Ipad Applications

Abstract Using the iPad tablet for Augmentative and Alternative Communication (AAC) purposes can facilitate many communicative needs, is cost-effective, and is socially acceptable. Many individuals with communication difficulties can use iPad applications (apps) to augment communication, provide an alternative form of communication, or target receptive and expressive language goals. In this paper, we will review a collection of iPad apps that can be used to address a variety of receptive and expressive communication needs. Based on recommendations from Gosnell, Costello, and Shane (2011), we describe the features of 21 apps that can serve as a reference guide for speech-language pathologists. We systematically identified 21 apps that use symbols only, symbols and text-to-speech, and text-to-speech only. We provide descriptions of the purpose of each app, along with the following feature descriptions: speech settings, representation, display, feedback features, rate enhancement, access, motor competencies, and cost. In this review, we describe these apps and how individuals with complex communication needs can use them for a variety of communication purposes and to target a variety of treatment goals. We present information in a user-friendly table format that clinicians can use as a reference guide.

Vitamin B12-based elimination of alkyl halides

2020 ◽  
Author(s):  
Julian West ◽  
Alexandros S Pollatos ◽  
Radha Bam
Keyword(s):  
Vitamin B12 ◽  
Alkyl Halides

A “User-Friendly” Guide to Therapy With Men

PsycCRITIQUES ◽  
2010 ◽  
Vol 55 (26) ◽  
Author(s):  
Jay C. Wade
Keyword(s):  
User Friendly
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