33143-29-2 Usage
Chemical Properties
Pale Yellow Crystalline Solid
Uses
Different sources of media describe the Uses of 33143-29-2 differently. You can refer to the following data:
1. 6-Cyano-2,2-dimethyl-2H-benzo-[b]-pyran (cas# 33143-29-2) is a compound useful in organic synthesis.
2. 2,2-Dimethyl-2H-1-benzopyran-6-carbonitrile (6-Cyano-2,2-dimethylchromene) may be used in the synthesis of 3,4-epoxy-6-cyano-2,2-dimethylchromene via epoxidation.
Synthesis Reference(s)
The Journal of Organic Chemistry, 37, p. 841, 1972 DOI: 10.1021/jo00971a006
General Description
2,2-Dimethyl-2H-1-benzopyran-6-carbonitrile (6-Cyano-2,2-dimethyl-2H-1-benzopyran) is a substituted 2,2-dimethyl-2H-1-benzopyran. It can be synthesized by the condensation reaction between 1,1-diethoxy-3-methyl-2-butene and 4-cyanophenol in the presence of pyridine.
Check Digit Verification of cas no
The CAS Registry Mumber 33143-29-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,1,4 and 3 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 33143-29:
(7*3)+(6*3)+(5*1)+(4*4)+(3*3)+(2*2)+(1*9)=82
82 % 10 = 2
So 33143-29-2 is a valid CAS Registry Number.
InChI:InChI=1/C12H11NO/c1-12(2)6-5-10-7-9(8-13)3-4-11(10)14-12/h3-7H,1-2H3