Results 251 to 260 of about 124,907 (379)

Ir‐Catalyzed Sulfur‐Directed Vinylic C─H Activation for the Stereoselective Synthesis of 1,3‐Dienes Using Alkynoates

open access: yesAsian Journal of Organic Chemistry, EarlyView.
Ir‐catalyzed sulfur‐directed C─H alkenylation of alkynoates proceeded by using aryl methallyl sulfides. When DMAD was employed, 1,3‐dienes were initially formed and subsequently underwent thermal 1,5‐sigmatropic rearrangement to yield secondary products with high stereoselectivitiy.
Takanori Shibata, Haru Marumo
wiley   +1 more source

A Triptycene‐Based Cage Host for Aromatic Hydrocarbon Guests

open access: yesAsian Journal of Organic Chemistry, EarlyView.
A molecular cage consisting of two tripodal triptycene units and three diphenylacetylene linkers includes aromatic guests such as anthracene, acenaphthylene, and pyrene into the cavity. The association constants of the host–guest complexation were determined by the 1H NMR titration.
Takuji Mitani   +4 more
wiley   +1 more source

Hydrogen‐Bonded Framework With Low‐Density Hexagonal Network Structure Formed by Diethynylterphenyl‐Bridged Macrocyclic Hexacarboxylic Acid

open access: yesAsian Journal of Organic Chemistry, EarlyView.
A single‐crystalline layered framework composed of a low‐density hydrogen‐bonded hexagonal network (HexNet) sheet was constructed using a C3‐symmetric π‐conjugated building block molecule possessing a macrocyclic core expanded by diethynylterphenyl linkers and peripheral six carboxy phenyl groups.
Yuzuru Kanetada   +4 more
wiley   +1 more source

Manipulation of Chemistry and Biology with Visible Light Using Tetra‐ortho‐Substituted Azobenzenes and Azonium Ions

open access: yesAngewandte Chemie, EarlyView.
Tetra‐ortho‐Azobenzenes (TOABs) in broad daylight: in recent years, TOAB photoswitches became indispensable tools for all‐visible‐light manipulation of chemistry, biology and materials. This review explores their unique photochemical properties, design and synthetic approaches, offering support in choosing a TOAB for a given application.
Francesca Cardano   +2 more
wiley   +1 more source

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