Coumarin (5,6-Benzo-2-pyrone) Trapping of an HDDA-Benzyne

Review Chemistry, Multidisciplinary

Hexadehydro-Diels-Alder Reaction: Benzyne Generation via Cycloisomerization of Tethered Triynes

Lucas L. Fluegel et al.

Summary: The HDDA reaction is a thermal cyclization process that generates highly functionalized benzenoid products, attracting attention for its versatility and customizable nature among researchers.

CHEMICAL REVIEWS (2021)

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Review Chemistry, Multidisciplinary

Chiroptical Properties of Symmetric Double, Triple, and Multiple Helicenes

Tadashi Mori

Summary: This review focuses on the chiroptical properties of multiple helicenes, with an emphasis on the impact of the arrangement of multiple helices on the chiroptical responses. Although the number of multiple helicenes reported is limited, insights into the design principle for advanced chiroptical materials through the proper arrangement of multiple helices are provided.

CHEMICAL REVIEWS (2021)

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Review Chemistry, Multidisciplinary

o-Silylaryl Triflates: A Journey of Kobayashi Aryne Precursors

Jiarong Shi et al.

Summary: Arynes are highly active organic intermediates used in the rapid synthesis of substituted arenes, with o-silylaryl triflates being the most frequently employed precursors. The resurgence in aryne chemistry over the past 20 years is largely attributed to the widespread use of Kobayashi's method, which involves fluoride-induced removal of the TMS group with concomitant departure of its ortho OTf group. This review provides an overview of the history, achievements, and applications of Kobayashi's method in the synthesis of natural products, bioactive molecules, and polycyclic aromatic hydrocarbons.

CHEMICAL REVIEWS (2021)

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Review Chemistry, Organic