Abstract:
A METHOD OF PREPARING 2-SUBSTITUTED BENZENE ACETATE OF THE FORMULA 1-(CH3-COO-),2-R-BENZENE WHERE R IS A MONOVALENT RADICAL OF UP TO 20 CARBONS SELECTED FROM THE GROUP CONSISTIN ALKYL, CYCLOALKYL AND -CH2COO(CH2)XCH3 WHERE X IS AN INTEGER FROM 0 TO 17 COMPRISING CONTACTING 2-SUBSTITUTED CYCLOHEXALNONE OF THE FORMULA:; 2-R-CYCLOHEXANONE WHERE R IS AS HERETOFORE DEFINED WITH MIXTURE OF ACETIC ANHYDRIDE, ACETIC ACID AND CONCENTRATED SULGURIC ACID AT A TEMPERATURE BETWEEN ABOUT 30 AND 140*C. UTILIZING A MOLE RATION OF SULFURIC ACID TO CYCLOHEXANONE OF AT LEAST 2:1 AND A MOLE RATIO OF ACETIC ACID TO ACETIC ANHYDRIDE OF AT LEAST ABOUT 1:1 AND RECOVERING SAID 2-SUBSTITUTED BENZENE ACETATE, THE 2-SUBTITUTED BENZENE ACETATE PRODUCT CAN BE READILY CONVERTED TO THE CORRESPONDING 2-SUBSTITUTED PHENOL BY HYDROLYSIS.
Abstract:
WHERE X represents said R1 and R2 in gem position, Y represents said R3 and R4 in gem position, and Z represents keto oxygen.
WHERE R1 and R2 are alkyl and R3 and R4 are both hydrogen or alkyl comprising contacting with a mixture of concentrated sulfuric acid and acetic anhydride, a gem polyalkylated cyclohexanedione of the general formula:
A method of preparing a non-gem polyalkylated benzene diacetate of the general formula:
Abstract:
An aqueous drilling fluid dispersant and a method of drilling wells using as the drilling fluid dispersant a water soluble salt of a sulfonated, dialkyl substituted benzodioxole of prescribed type.
Abstract:
A method of preparing nitrocycloalkanones by simultaneously contacting a solution containing a cycloalkene, a denitrating agent and an organic solvent with a mixture of dinitrogen tetroxide and oxygen, the mole ratio of denitrating agent to cycloalkene being above 0.1:1 and up to about 2:1, preferably about 0.5:1 to 1:1, as a one step nitrooxidation reaction. The nitrocycloalkanones so formed are useful as fuel and lubricant additives as well as intermediates in the preparation of cyclic lactams such as caprolactam.
Abstract:
A method of preparing nitrocycloalkanones by simultaneously contacting a solution containing a cycloalkene, a 2-pyrrolidinone denitrating agent and an organic solvent with a mixture of dinitrogen tetroxide and oxygen, the mole ratio of denitrating agent to cycloalkene being above 0.1:1 and up to about 2:1, preferably about 0.5:1 to 1:1, as a one step nitrooxidation reaction. The nitrocycloalkanones so formed are useful as fuel and lubricant additives as well as intermediates in the preparation of cyclic lactams such as caprolactam.
Abstract:
A method of preparing alpha-nitroketones by simultaneously contacting a solution of an alkene, a denitrating agent and an organic solvent with a mixture of dinitrogen tetroxide and oxygen, the mole ratio of denitrating agent to alkene being above 0.1:1 and up to about 2:1, preferably about 0.5:1 and 1:1 as a one step nitrooxidation reaction. The alpha-nitroketones so prepared are useful as fuel and lubricant additives as well as intermediates in the preparation of amides, acids, and nitroalkanes.
WHERE ACETATE DERIVATIVE R1, R2, R3, A and y are as heretofore defined, and subsequently hydrolizing said acetate derivate to form an aromatic compound of the formula:
WHERE W'' is a monovalent radical selected from the group consisting of
WHERE R3 is hydrogen or alkyl of from 1 to 9 carbons and y is an integer of from 0 to 10 with a mixture of acetic anhydride and concentrated sulfuric acid optionally in the additional presence of acetic acid at a temperature between about 30 and 145*C. utilizing a mole ratio of sulfuric acid to substituted cyclohexene of between about 1.1:1 and 3:1 and a mole ratio of acetic anhydride to cyclohexene of between about 1:1 and 10:1 to form an intermediate aromatic acetate derivative of the formula:
WHERE R1 and R2 are hydrogen or alkyl, A is alkanediyl of from 0 to 9 carbons and a keto group of from 3 to 22 carbons of the formula:
WHERE W is a monovalent radical selected from the group consisting of a hydroxyl group of from 1 to 10 carbons of the formula:
A method of aromatizing substituted cyclohexene to the corresponding aromatic compound comprising contacting a substituted cyclohexene of the formula:
Abstract:
METHOD OF PREPARING A CATECHOL DIACETATE OF THE FORMULA:
1,2-DI(CH3-COO-),3-R1,4-R2,5-R3-BENZENE
WHERE R1, R2, AND R3 ARE HYDROGEN OR ALKYL COMPRISING CONTACTING A HALOCYCLOHEXANONE OF THE FORMULA:
2-X3,2-X4,3-R1,4-R2,5-R3,6-X1,6-X2-CYCLOHEXANONE
WHERE R1, R2 AND R3 ARE AS HERETOFORE DEFINED AND X1, X2, X3 AND X4 ARE HYDROGEN OR HALOGEN AT LEAST ONE OF THE X MEMBERS BEING HALOGEN WITH ACETIC ANHYDRIDE IN THE PRESENCE OF A CATALYTIC AMOUNT OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF BORON TRIFLUORIDE ETHERATE, PYRIDINE, CONCENTRATED SULFURIC ACID AND HYDROCHLORIC ACID, SUBSEQUENTLY CONTACTING THE RESULTANT MIXTURE WITH CONCENTRATED SULFURIC ACID.