2,5-Bis(methylamino)-1,3,4-thiadiazole → 2,5-Bis(ethylamino)-1,3,4-oxadiazole

Participants

Role	Name	HCID	Charge
Reactant	2,5-Bis(methylamino)-1,3,4-thiadiazole	HCID 588929	—
Reactant	N-(2-ethoxyethyl)-N'-(2-methoxyethyl)-1,3,4-thiadiazole-2,5-diamine	HCID 20324755	—
Reactant	N-(2-methoxyethyl)-N'-phenyl-1,3,4-thiadiazole-2,5-diamine	HCID 20324756	—
Reactant	N-(2-ethoxyethyl)-N'-methyl-1,3,4-thiadiazole-2,5-diamine	HCID 20324759	—
Reactant	N~2~,N~5~-Bis(2-methoxyethyl)-1,3,4-thiadiazole-2,5-diamine	HCID 20324761	—
Reactant	N-(2-methoxyethyl)-N'-(4-methoxyphenyl)-1,3,4-thiadiazole-2,5-diamine	HCID 20324764	—
Catalyst	Silver Chloride	HCID 24561	—
Product	2,5-Bis(ethylamino)-1,3,4-oxadiazole	HCID 21331377	—

Reaction Steps

The photographic element of claim 10 comprising a silver chloride emulsion layer incorporating a silver halide developing agent which is 2,5-bis-(methylamino)-1,3,4-thiadiazole; 2-methylamino-5-ethylamino-1,3,4,thiadiazole; 2-(2-ethoxyethylamino)-5-methylamino-1,3,4-thiadiazole; 2,5-bis(2-methoxyethylamino)-1,3,4-thiadiazole; 2-(2-ethoxyethylamino)-5-(2-methoxyethylamino)-1,3,4-thiadiazole; 2-(2-methoxyethylamino)-5-phenylamino-1,3,4-thiadiazole; 2-(p-methoxyphenylamino)-5-(2-methoxyethylamino)-1,3,4-thiadiazole; or

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US04093462
Source dataset	uspto-grants-1978_06
ORD ID	ord-4f21a003f6c94bb8bdfb7da50bf5ad6b
Source note	uspto-grants-1978_06