Isocyanato-dioxazolinones and dioxazines prodn. - from(acid salts of) amino-hydroxamic acids and phosgene or oxalyl chloride
The prodn. of isocyanato dioxazolinones or isocyanatodioxazines of formula (A) (where R is an n+m-valent aliphatic, cycloaliphatic aromatic or heterocyclic gp.; x is 1 or 2; m and n are 1, 2 3 or 4) comprises reacting the salt of an acid with an aminohydroxamic acid (III) or the free (III) of formul...
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| Main Authors | , |
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| Format | Patent |
| Language | English German |
| Published |
25.03.1976
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| Edition | 2 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | The prodn. of isocyanato dioxazolinones or isocyanatodioxazines of formula (A) (where R is an n+m-valent aliphatic, cycloaliphatic aromatic or heterocyclic gp.; x is 1 or 2; m and n are 1, 2 3 or 4) comprises reacting the salt of an acid with an aminohydroxamic acid (III) or the free (III) of formula (where HX is a mono- or poly-basic, inorg. or org. acid) with COCl2 or (COCl2)2 at -25 to +200 degrees C, opt. in the presence of an inert solvent. Good yields are obtd. |
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| AbstractList | The prodn. of isocyanato dioxazolinones or isocyanatodioxazines of formula (A) (where R is an n+m-valent aliphatic, cycloaliphatic aromatic or heterocyclic gp.; x is 1 or 2; m and n are 1, 2 3 or 4) comprises reacting the salt of an acid with an aminohydroxamic acid (III) or the free (III) of formula (where HX is a mono- or poly-basic, inorg. or org. acid) with COCl2 or (COCl2)2 at -25 to +200 degrees C, opt. in the presence of an inert solvent. Good yields are obtd. |
| Author | MERTEN, RUDOLF., 5090 LEVERKUSEN HOCKER, JUERGEN., 5000 KOELN |
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| Discipline | Medicine Chemistry Sciences |
| DocumentTitleAlternate | VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN |
| Edition | 2 |
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| Notes | Application Number: DE19742443484 |
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| PublicationCentury | 1900 |
| PublicationDate | 19760325 |
| PublicationDateYYYYMMDD | 1976-03-25 |
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| PublicationDecade | 1970 |
| PublicationYear | 1976 |
| RelatedCompanies | BAYER AG, 5090 LEVERKUSEN |
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| Snippet | The prodn. of isocyanato dioxazolinones or isocyanatodioxazines of formula (A) (where R is an n+m-valent aliphatic, cycloaliphatic aromatic or heterocyclic... |
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| SubjectTerms | CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY |
| Title | Isocyanato-dioxazolinones and dioxazines prodn. - from(acid salts of) amino-hydroxamic acids and phosgene or oxalyl chloride |
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