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2-(benzylthio)-4-oxothieno[3,2-d]pyrimidine-3(4H)acetonitrile is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

350987-55-2

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350987-55-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 350987-55-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,5,0,9,8 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 350987-55:
(8*3)+(7*5)+(6*0)+(5*9)+(4*8)+(3*7)+(2*5)+(1*5)=172
172 % 10 = 2
So 350987-55-2 is a valid CAS Registry Number.

350987-55-2Downstream Products

350987-55-2Relevant academic research and scientific papers

A new dimerization reaction producing 2-amino-9-oxopyrrolo-[2,1-b]quinazoline-1-carbonitriles and analogous pyrrolo-[1,2-a]thieno[3,2-d]pyrimidinecarbonitriles

Guetschow,Powers

, p. 419 - 424 (2001)

A series of 2-alkylthio-4-oxo-3-quinazolineacetonitriles 4 and 2-alkylthio-4-oxothieno[3,2-d]pyrimidine-3-acetonitriles 8 was prepared. Upon treatment with sodium hydride, compounds 4 and 8 react to give 2-amino-4,9-dihydro-9-oxopyrrolo[2,1-b]quinazoline-1-carbonitriles 9 and 6-amino-4,9-dihydro-9-oxopyrrolo[1,2-a]thieno [3,2-d]pyrimidine-7-carbonitriles 10, respectively. The transformation of compounds 4 and 8 to the tricyclic aminonitriles 9 and 10 involves a dimerization step followed by a pyrrole cyclization. The tert-butyl ester derivatives 4d and 8d upon treatment with sodium hydride underwent a Thorpe-Ziegler cyclization to provide enaminoesters of fused 1,3-thiazines (16 and 17, respectively) as major products.

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