Rh(I)-Catalyzed Silylation of Aryl and Alkenyl Cyanides Involving the Cleavage of C−C and Si−Si Bonds

The Rh(I)-catalyzed silylation of nitriles with disilanes is described. The cleavage of inert carbon−cyano and silicon−silicon bonds occurs in this catalysis

Rhodium-Catalyzed Silylation and Intramolecular Arylation of Nitriles via the Silicon-Assisted Cleavage of Carbon−Cyano Bonds

A rhodium-catalyzed silylation reaction of carbon−cyano bonds using disilane has been developed. Under these catalytic conditions, carbon−cyano bonds in aryl, alkenyl, allyl, and benzyl cyanides bearing a variety of functional groups can be silylated. The observation of an enamine side product in the silylation of benzyl cyanides and related stoichiometric studies indicate that the carbon−cyano bond cleavage proceeds through the deinsertion of silyl isocyanide from η2-iminoacyl complex B. Knowledge gained from these studies has led to the development of a new intramolecular biaryl coupling reaction in which aryl cyanides and aryl chlorides are cross-coupled

Rhodium-Catalyzed Alkenylation of Nitriles via Silicon-Assisted C−CN Bond Cleavage

Rhodium-catalyzed Mizoroki−Heck type reaction of nitriles via the cleavage of C−C bonds is described. Orthogonal and iterative functionalizations of arenes were also demonstrated by combining the present and conventional halide-based cross-coupling reactions

Rhodium-Catalyzed Silylation and Intramolecular Arylation of Nitriles via the Silicon-Assisted Cleavage of Carbon−Cyano Bonds

A rhodium-catalyzed silylation reaction of carbon−cyano bonds using disilane has been developed. Under these catalytic conditions, carbon−cyano bonds in aryl, alkenyl, allyl, and benzyl cyanides bearing a variety of functional groups can be silylated. The observation of an enamine side product in the silylation of benzyl cyanides and related stoichiometric studies indicate that the carbon−cyano bond cleavage proceeds through the deinsertion of silyl isocyanide from η2-iminoacyl complex B. Knowledge gained from these studies has led to the development of a new intramolecular biaryl coupling reaction in which aryl cyanides and aryl chlorides are cross-coupled

Rhodium-Catalyzed Reductive Cleavage of Carbon−Cyano Bonds with Hydrosilane: A Catalytic Protocol for Removal of Cyano Groups

Rhodium-Catalyzed Reductive Cleavage of Carbon−Cyano Bonds with Hydrosilane: A Catalytic Protocol for Removal of Cyano Group

Experimental flows for image detection and analysis.

The S2 microfibril angle (MFA) values of radial and tangential walls were obtained from polarization optical microscopy (POM)-based imaging (step A). Tracheid morphology in a radial file unit was extracted from fluorescence microscopy (FLM)-based imaging and image analyses (step B). Finally, the two results were integrated to simultaneously evaluate S2 MFA and tracheid morphology (step C). Details of each experimental step are explained in the main text.</p

Example of image concatenation applied to a set of retardation images.

The reconstructed retardation image comprised 72 partly overlapping retardation images in total (9 columns × 8 rows). Each image contained 66% overlapping regions with adjacent image patches in the horizontal and vertical directions.</p

Rhodium-Catalyzed Coupling of 2-Silylphenylboronic Acids with Alkynes Leading to Benzosiloles: Catalytic Cleavage of the Carbon−Silicon Bond in Trialkylsilyl Groups

Rhodium-Catalyzed Coupling of 2-Silylphenylboronic Acids with Alkynes Leading to Benzosiloles: Catalytic Cleavage of the Carbon−Silicon Bond in Trialkylsilyl Group

Selective detection of S₂ or S₁+S₃ layers.

(A) S2 detection and (B) S1+S3 detection in a latewood, (D) S2 detection and (E) S1+S3 detection in an earlywood. (C) and (F) are merged images of (A) and (B), and (D) and (E), respectively. Red and green dots correspond to the detected S2 (local-intensity minima) and S1+S3 (local-intensity maxima) layers’ contributions, respectively. Bars, 10 μm.</p

Normalized intra-annual transitional behaviors of a portion of the anatomical parameters.

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