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81616-78-6

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81616-78-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81616-78-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,1 and 6 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81616-78:
(7*8)+(6*1)+(5*6)+(4*1)+(3*6)+(2*7)+(1*8)=136
136 % 10 = 6
So 81616-78-6 is a valid CAS Registry Number.

81616-78-6Relevant articles and documents

Photoenzymatic Reductions Enabled by Direct Excitation of Flavin-Dependent "Ene"-Reductases

Sandoval, Braddock A.,Clayman, Phillip D.,Oblinsky, Daniel G.,Oh, Seokjoon,Nakano, Yuji,Bird, Matthew,Scholes, Gregory D.,Hyster, Todd K.

supporting information, p. 1735 - 1739 (2021/01/25)

Non-natural photoenzymatic reactions reported to date have depended on the excitation of electron donor-acceptor complexes formed between substrates and cofactors within protein active sites to facilitate electron transfer. While this mechanism has unlocked new reactivity, it limits the types of substrates that can be involved in this area of catalysis. Here we demonstrate that direct excitation of flavin hydroquinone within "ene"-reductase active sites enables new substrates to participate in photoenzymatic reactions. We found that by using photoexcitation these enzymes gain the ability to reduce acrylamides through a single electron transfer mechanism.

Cobalt-Catalyzed Olefinic C-H Alkenylation/Alkylation Switched by Carbonyl Groups

Li, Tingyan,Shen, Cong,Sun, Yaling,Zhang, Jian,Xiang, Panjie,Lu, Xiunan,Zhong, Guofu

supporting information, p. 7772 - 7777 (2019/10/10)

The first cobalt-catalyzed cross-couplings between olefins has been demonstrated to provide C(alkenyl)-H alkenylation and alkylation products, using complex [Cp?Co(CO)I2]. While coupling partner acrylates afforded conjugated dienoates, α,β-unsaturated ketones led to γ-alkenyl ketones completely, representing a switchable C-H functionalization controlled by different carbonyl groups.

P450-catalyzed asymmetric cyclopropanation of electron-deficient olefins under aerobic conditions

Renata, Hans,Wang, Z. Jane,Kitto, Rebekah Z.,Arnold, Frances H.

, p. 3640 - 3643 (2015/02/05)

A variant of P450 from Bacillus megaterium five mutations away from wild type is a highly active catalyst for cyclopropanation of a variety of acrylamide and acrylate olefins with ethyl diazoacetate (EDA). The very high rate of reaction enabled by histidine ligation allowed the reaction to be conducted under aerobic conditions. The promiscuity of this catalyst for a variety of substrates containing amides has enabled synthesis of a small library of precursors to levomilnacipran derivatives. This journal is

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