The diverse reactivity profiles of α‐diimine analogues, di/tetrahydro‐bisisoquiniline (L1–2H/L2–4H), and biimidazopyridine (L3) have been illustrated on the {Ru(acac)₂} platform (acac=acetylacetonate). Increasing Lewis acidity on coordination to {Ru(acac)₂} as well as fine tuning of ligand backbone led to oxidative dehydrogenation of L1–2H/L2–4H to yield metallated bisisoquinoline (BIQ) and unexplored C–C coupling/nucleophilic attack assisted ring opening reactions at L3 to rearrange into modified metallated amidate functions. Preformed L1–4H involving amine functionality underwent in situ transformation to imine in [Ru^II/III(acac)₂(L1–2H)]^{n +} (1 ^{n +}, n = 0,1), followed by dehydrogenation to yield [Ru^II/III(acac)₂(BIQ)]^{n +} (2 ^{n +}, n = 0,1). Analogous complex [Ru^II(acac)₂(L2–4H)]^{n +} (3 ^{n +}, n = 0,1) encompassing diimine (L2–4H) ligand also participated in similar dehydrogenation process to generate 2 ^{n +}. On the other hand, reaction of L3 with {Ru(acac)₂} led to the simultaneous formation of three products: [Ru^III(acac)₂(L3)]ClO₄ ([4 ]ClO₄) incorporating unperturbed N,N ‐donating L3 and [Ru^III(acac)(L4)] (5 )/[Ru^III(acac)₂(L5)] (6 ) with functionalized L3. Involvement of intramolecular C–C coupling between the methine carbon of acac and L3 or the intermolecular nucleophilic attack of H₂O at L3, resulted in functionalized L4 or L5 in 5 or 6 , respectively. Authentication of the isolated products was made via structural, electrochemical and spectral details along with theoretical support.

中文翻译：

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在{Ru（acac）2}平台上模仿α-二胺的二/四氢双异喹啉和双咪唑并吡啶的非观者特征

在{Ru（acac）₂ }平台上（acac =乙酰丙酮酸）可以说明α-二亚胺类似物，二/四氢双异喹啉（L1-2H / L2-4H）和联咪唑并吡啶（L3）的不同反应谱。在与{Ru（acac）₂ }配位时提高Lewis酸度，以及对配体主链进行微调，导致L1-2H / L2-4H氧化脱氢，生成金属化的双异喹啉（BIQ）和未开发的C-C偶联/亲核攻击辅助L3处的开环反应可重排为修饰的金属化酰胺化物功能。在[Ru ^{II / III}（acac）₂（L1-2H）] ^{n +}（1 ^{n +中，}将包含胺官能团的预制L1-4H原位转化为亚胺，n＝ 0.1），然后脱氢以产生[Ru ^{II / III}（acac）₂（BIQ）] ^{n +}（2 ^{n +}，n＝ 0.1）。包含二亚胺（L2-4H）配体的类似络合物[Ru ^II（acac）₂（L2-4H）] ^{n +}（3 ^{n +}，n = 0,1）也参与了类似的脱氢过程，从而生成2 ^{n +}。另一方面，L3与{Ru（acac）₂ }的反应导致同时形成三种产物：[Ru ^III（acac）₂（L3）] ClO ₄（[ 4 ] ClO ₄）包含未扰动的N，N供体L3和[Ru ^III（acac）（L4）]（5）/ [Ru ^III（acac）₂（L5）]（6）和功能化的L3。acac的次甲基碳与L3之间的分子内C–C偶联或H ₂ O在L3处的分子间亲核攻击，分别导致功能化的L4或L5在5或6中。分离产物的鉴定通过结构，电化学和光谱详细信息以及理论依据进行。