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82234-81-9

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82234-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82234-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,2,3 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 82234-81:
(7*8)+(6*2)+(5*2)+(4*3)+(3*4)+(2*8)+(1*1)=119
119 % 10 = 9
So 82234-81-9 is a valid CAS Registry Number.

82234-81-9Downstream Products

82234-81-9Relevant articles and documents

Carbenoid insertion into alkenylzirconocenes - A convergent synthesis of functionalised allylmetallics

Kasatkin,Whitby

, p. 6211 - 6216 (2000)

Insertion of lithium alkylcarbenoids RC(A)LiX, A = CN, P(O)(OEt)2, SO2Ph, OMe into alkenylzirconocene chlorides derived by hydrozirconation of terminal alkynes affords functionalised allylzirconium reagents which may be further elaborated. (C) 2000 Elsevuer Science Ltd.

Direct substitution of primary allylic amines with sulfinate salts

Wu, Xue-Song,Chen, Yan,Li, Man-Bo,Zhou, Meng-Guang,Tian, Shi-Kai

supporting information, p. 14694 - 14697 (2012/11/07)

The NH2 group in primary allylic amines was substituted directly by sulfinate salts with excellent regio- and stereoselectivities. In the presence of 0.1 mol % [Pd(allyl)Cl]2, 0.4 mol % 1,4- bis(diphenylphosphino)butane (dppb), and excess boric acid, a range of α-unbranched primary allylic amines were smoothly substituted with sodium sulfinates in an α-selective fashion to give structurally diverse allylic sulfones in good to excellent yields with exclusive E selectivity. Replacing dppb with 1,1′-bi-2-naphthol (BINOL) allowed unsymmetric α-chiral primary allylic amines to be transformed into the corresponding allylic sulfones in good to excellent yields with excellent retention of ee. Importantly, the reaction complements known asymmetric methods in substrate scope via its unique ability to provide α-chiral allylic sulfones with high optical purity starting from unsymmetric allylic electrophiles.

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