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1985-77-9

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1985-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1985-77-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,8 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1985-77:
(6*1)+(5*9)+(4*8)+(3*5)+(2*7)+(1*7)=119
119 % 10 = 9
So 1985-77-9 is a valid CAS Registry Number.

1985-77-9Relevant articles and documents

Mizoroki–Heck reaction of 1,2-disubstituted aryl alkenes: Variables of synthesis, solvent and ligand modulation of reactivity

Bangar, Pronnoy G.,Jawalkar, Priyanka R.,Dumbre, Swapnil R.,Raut, Pallavi K.,Patil, Dharmaraj J.,Tv, Neethu,Sudhakaran, Shana,Iyer, Suresh

supporting information, p. 3796 - 3803 (2020/09/01)

Reaction of aryl iodides with 1,2-disubstituted aryl alkenes in the presence of TBABr/TBACl gave high yields of the Mizoroki–Heck product. Phosphine ligands were used for the modulation of reactivity and stereoselectivity, for the reaction of 4-iodoanisole with cinnamaldehyde. tert-Bu3P.HBF4 gave the highest E:Z ratio of 1:0.08. The use of PEG-200 and PEG-400 as solvent could activate the reaction of aryl iodides with various 1,2-disubstituetd aryl alkenes.

Polysubstituted ethylene compound as well as preparation method and application thereof

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Paragraph 0125-0129; 0170-0174, (2020/12/30)

The invention discloses a polysubstituted ethylene compound as well as a preparation method and application thereof. The invention particularly discloses a preparation method of a polysubstituted ethylene compound as shown in a formula III, which comprises the following step: in an organic solvent, carrying out reaction as shown in the specification on a compound as shown in a formula I and a compound as shown in a formula II in the presence of a palladium catalyst, a phosphine ligand and alkali to obtain the polysubstituted ethylene compound as shown in the formula III. The preparation methodcan be suitable for various types of substrates, and the configuration of double bonds is controllable.

Nickel-Catalyzed Hydroarylation of Alkynes under Reductive Conditions with Aryl Bromides and Water

Barber, E. Ryan,Hynds, Hannah M.,Stephens, Claudia P.,Lemons, Holli E.,Fredrickson, Emily T.,Wilger, Dale J.

, p. 11612 - 11622 (2019/10/02)

An operationally simple nickel-catalyzed hydroarylation reaction for alkynes is described. This three-component coupling reaction utilizes commercially available alkynes and aryl bromides, along with water and Zn. An air-stable and easily synthesized Ni(II) precatalyst is the only entity used in the reaction that is not commercially available. This reductive cross-coupling reaction displays a fairly unusual anti selectivity when aryl bromides with ortho substituents are used. In addition to optimization data and a preliminary substrate scope, complementary experiments including deuterium labeling studies are used to provide a tentative catalytic mechanism. We believe this report should inspire and inform other Ni-catalyzed carbofunctionalization reactions.

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