GB204722A - Manufacture of diaminodiaryldialkylmethanes - Google Patents

Manufacture of diaminodiaryldialkylmethanes

Info

Publication number
GB204722A
GB204722A GB24307/23A GB2430723A GB204722A GB 204722 A GB204722 A GB 204722A GB 24307/23 A GB24307/23 A GB 24307/23A GB 2430723 A GB2430723 A GB 2430723A GB 204722 A GB204722 A GB 204722A
Authority
GB
United Kingdom
Prior art keywords
aniline
acetone
diaminodiaryldialkylmethanes
solution
manufacture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB24307/23A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of GB204722A publication Critical patent/GB204722A/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Diaminodiaryldialkylmethanes are produced by heating aniline, or a nuclear alkyl substitution product thereof having an unoccupied para-position, with an aliphatic ketone. The base is employed in the form of a salt and in aqueous solution. According to the examples, a solution of aniline hydrochloride is heated with acetone in an autoclave, and diaminodiphenyldimethylmethane isolated by making the solution alkaline, removing the excess of aniline by steam distillation, and crystallizing the residue from boiling water; in a similar way diaminodi-o-tolyldimethylmethane is obtained from o-toluidine and acetone, and diaminodiphenylmethylethylmethane from aniline and methylethylketone.
GB24307/23A 1922-09-29 1923-09-29 Manufacture of diaminodiaryldialkylmethanes Expired GB204722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE204722X 1922-09-29

Publications (1)

Publication Number Publication Date
GB204722A true GB204722A (en) 1924-02-14

Family

ID=5783370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24307/23A Expired GB204722A (en) 1922-09-29 1923-09-29 Manufacture of diaminodiaryldialkylmethanes

Country Status (1)

Country Link
GB (1) GB204722A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424795A (en) * 1963-07-25 1969-01-28 Allied Chem Alpha,alpha'-bis(aminoaryl)-xylenes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424795A (en) * 1963-07-25 1969-01-28 Allied Chem Alpha,alpha'-bis(aminoaryl)-xylenes

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