3383-74-2Relevant articles and documents
METHOD FOR PRODUCING POTASSIUM SALT, AND POTASSIUM SALT
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Paragraph 0049, (2018/04/10)
PROBLEM TO BE SOLVED: To provide a method that makes it possible to efficiently produce a halogen compound useful as a precursor of a compound that can be used suitably for optical materials in general. SOLUTION: A method for producing potassium salt includes the step for producing potassium salt represented by formula (1) by the reaction between a compound represented by formula (3), a cyclic carbonate ester compound, and potassium carbonate. [R2 is an aromatic ring-containing group having C constituting an aromatic ring at a binding site to O; n is 1 or 2; R1 independently represents an alkylene group]. SELECTED DRAWING: None COPYRIGHT: (C)2018,JPOandINPIT
MANUFACTURING METHOD OF HALOGEN COMPOUND, MANUFACTURING METHOD OF POTASSIUM SALT AND POTASSIUM SALT
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Paragraph 0049, (2016/10/08)
PROBLEM TO BE SOLVED: To provide a method capable of manufacturing a halogen compound useful as a precursor of a compound capable of being preferably used especially for optical system materials generally with high efficiency. SOLUTION: There is provided a manufacturing method of a halogen compound including a process of reacting a compound represented by the following formula (1) and a halogenation agent to produce a halogen compound represented by the following formula (2). In the formula (1), R1 is a linear or branched alkylene group, R2 is an aromatic ring-containing group having a carbon atom constituting an aromatic ring at a binding part with an oxygen atom represented in the formula, n is 1 or 2 and two of R1s may same or different when n is 2. In the formula (2), X is a halogen atom. COPYRIGHT: (C)2016,JPOandINPIT
A practical approach to highly functionalized benzodihydrofurans
Plotkin, Michael,Chen, Sanyou,Spoors, P. Grant
, p. 2269 - 2273 (2007/10/03)
A number of aromatic dibromides have been treated with 2-3 equivalents of n-butyllithium in order to initiate two sequential chemical events, a Parham cyclization and an intermolecular reaction with DMF. (C) 2000 Elsevier Science Ltd.