AT220147B - Process for the preparation of new derivatives of 1, 3, 3-trimethyl-spiro- (2'H-1'-benzopyran-2, 2'-indoline) - Google Patents

Process for the preparation of new derivatives of 1, 3, 3-trimethyl-spiro- (2'H-1'-benzopyran-2, 2'-indoline)

Info

Publication number
AT220147B
AT220147B AT237060A AT237060A AT220147B AT 220147 B AT220147 B AT 220147B AT 237060 A AT237060 A AT 237060A AT 237060 A AT237060 A AT 237060A AT 220147 B AT220147 B AT 220147B
Authority
AT
Austria
Prior art keywords
benzopyran
indoline
spiro
trimethyl
preparation
Prior art date
Application number
AT237060A
Other languages
German (de)
Original Assignee
Ncr Co
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 Ncr Co filed Critical Ncr Co
Application granted granted Critical
Publication of AT220147B publication Critical patent/AT220147B/en

Links

AT237060A 1959-04-03 1960-03-29 Process for the preparation of new derivatives of 1, 3, 3-trimethyl-spiro- (2'H-1'-benzopyran-2, 2'-indoline) AT220147B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80383659A 1959-04-03 1959-04-03

Publications (1)

Publication Number Publication Date
AT220147B true AT220147B (en) 1962-03-12

Family

ID=32106010

Family Applications (1)

Application Number Title Priority Date Filing Date
AT237060A AT220147B (en) 1959-04-03 1960-03-29 Process for the preparation of new derivatives of 1, 3, 3-trimethyl-spiro- (2'H-1'-benzopyran-2, 2'-indoline)

Country Status (3)

Country Link
AT (1) AT220147B (en)
BE (1) BE589138A (en)
DK (1) DK101524C (en)

Also Published As

Publication number Publication date
BE589138A (en) 1960-07-18
DK101524C (en) 1965-04-26

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