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Dearomatizing and Derivatizing a Mesityl Group on Boron by One‐Pot Photoisomerization and [4+2] Diels–Alder Addition
Boron compounds having a conjugated chelate backbone (N,C‐chelate or C,C‐chelate) and two mesityl substituents on boron have been found to undergo a facile one‐pot transformation/reaction with dienophiles, which leads to ...
Intramolecular Borylation via Sequential B‐Mes Bond Cleavage for the Divergent Synthesis of B,N,B‐doped Benzohelicenes
New symmetric and unsymmetric B,N,B‐doped benzohelicenes 3 ‐ 6a/b have been achieved in good yields, using a three‐step process, starting from N(tolyl) 3 in a highly divergent manner (7 examples). A borinic acid ...
Expedient Pd‐Catalyzed α‐Arylation towards Dibenzoxepinones. Pivotal Manske's Ketone for the Formal Synthesis of Cularine Alkaloids
The general synthesis of diversely substituted dibenzoxepinones by a combined Pd‐catalyzed α‐arylation and SNAr strategy is reported and applied to the synthesis of Manske's ketone, a key intermediate en route to the total ...