Preparation of acylisoxazolines
First Claim
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1. A method of preparing an acylisoxazoline or mixtures thereof corresponding to the formula:
- ##STR3## where R is an alkyl group having from 2 to 20 carbon atoms which comprises contacting a 1-alkene, or mixtures thereof, of the formula R--CH═
CH2 with dinitrogen tetroxide and oxygen in the presence of a denitrating agent that consists of one or more compounds selected from ##STR4## where R1, R2, R6, R7, R8, R9 and R10 are alkyl of from 1 to 5 carbons and R3, R4, R5, R11, R12, and R13 are hydrogen or alkyl of from 1 to 5 carbons and calcium oxide at a temperature of about -10°
to 40°
C., wherein the mole ratio of alkene to dinitrogen tetroxide to oxygen is from about 1;
0.02;
0.04 to 1;
0.4;
30 and the mole ratio of dinitrogen tetroxide to denitrating agent to calcium oxide is from about 1;
0.5;
0.5 to 1;
5;
5.
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Abstract
A method of preparing acylisoxazolines by contacting an alkene with dinitrogen tetroxide and oxygen in the presence of a denitrating agent and calcium oxide.
17 Citations
8 Claims
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1. A method of preparing an acylisoxazoline or mixtures thereof corresponding to the formula:
- ##STR3## where R is an alkyl group having from 2 to 20 carbon atoms which comprises contacting a 1-alkene, or mixtures thereof, of the formula R--CH═
CH2 with dinitrogen tetroxide and oxygen in the presence of a denitrating agent that consists of one or more compounds selected from ##STR4## where R1, R2, R6, R7, R8, R9 and R10 are alkyl of from 1 to 5 carbons and R3, R4, R5, R11, R12, and R13 are hydrogen or alkyl of from 1 to 5 carbons and calcium oxide at a temperature of about -10°
to 40°
C., wherein the mole ratio of alkene to dinitrogen tetroxide to oxygen is from about 1;
0.02;
0.04 to 1;
0.4;
30 and the mole ratio of dinitrogen tetroxide to denitrating agent to calcium oxide is from about 1;
0.5;
0.5 to 1;
5;
5. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- ##STR3## where R is an alkyl group having from 2 to 20 carbon atoms which comprises contacting a 1-alkene, or mixtures thereof, of the formula R--CH═
Specification
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Current AssigneeTexaco Incorporated (Chevron Corp.)
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Original AssigneeTexaco Incorporated (Chevron Corp.)
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InventorsLarkin, John M., Reid, Robert E., Kablaoui, Mahmoud S.
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Primary Examiner(s)Rush, Raymond V.
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Application NumberUS05/739,377Time in Patent Office438 DaysField of Search260/307 FUS Class Current548/240CPC Class CodesC07D 261/04 having one double bond betw...
