1836-77-7 Usage
Synthesis
4-Cyanotetrahydropyran can be obtained by chlorination of phenol with chlorine gas to obtain 2,4,6-trichlorophenol, which is then condensed with p-nitrochlorobenzene.
Uses
Herbicide.
Safety Profile
Low toxicity by ingestion and skincontact. Mutation data reported. Used as an herbicide.When heated to decomposition it emits very toxic fumesof NOx and Clí.
Metabolic pathway
Degradation of chlornitrofen by microorganisms
isolated from soils gives rise to the reduction of the
nitro group of chlornitrofen to the amino analog, and
the successive N-acetylation or N-methylation and the
cleavage of the ether linkage are dominant metabolic
pathways. The metabolic pathways, however, differ
depending on microorganisms and the media. The
replacement of the amino group by hydroxyl group,
the reduction and successive formylation of
p-nitrophenol, and the cleavage of the phenyl ring
ultimately to produce CO2 are also observed.
Check Digit Verification of cas no
The CAS Registry Mumber 1836-77-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,3 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1836-77:
(6*1)+(5*8)+(4*3)+(3*6)+(2*7)+(1*7)=97
97 % 10 = 7
So 1836-77-7 is a valid CAS Registry Number.
InChI:InChI=1/C48H30Cl6N2O5/c49-39-19-7-1-13-29(39)33-25-47(55(57)58,37-17-5-11-23-43(37)53)26-34(30-14-2-8-20-40(30)50)45(33)61-46-35(31-15-3-9-21-41(31)51)27-48(56(59)60,38-18-6-12-24-44(38)54)28-36(46)32-16-4-10-22-42(32)52/h1-28,45-46H
1836-77-7Relevant articles and documents
CsF/clinoptilolite: An efficient solid base in SNAr and copper-catalyzed Ullmann reactions
Keipour, Hoda,Hosseini, Abolfazl,Afsari, Amir,Oladee, Razieh,Khalilzadeh, Mohammad A.,Ollevier, Thierry
, p. 95 - 104 (2016/01/16)
CsF/clinoptilolite was found to be an efficient solid base catalyst for both SNAr and Ullmann ether reactions. A general and efficient one-step procedure was developed for the synthesis of biaryl ethers via direct coupling of electron-deficient aryl halides to phenols using CsF/clinoptilolite. The protocol was also applied to electron-rich aryl halides by addition of a catalytic amount of copper oxide nanoparticles. Both SNAr and Ullmann reactions were rapid and provided good to excellent yields.
Halopyridyl triazolinone herbicides and herbicidal use thereof
-
, (2008/06/13)
Disclosed are herbicidal halopyridyl triazolinones, herbicidal compositions comprising the halopyridyl triazolinones, and herbicidal use of the compounds and compositions. Such compounds and compositions are useful as both preemergence and postemergence herbicides in a variety of crops.
