GB574038A - Improvements in or relating to photographic materials - Google Patents

Improvements in or relating to photographic materials

Info

Publication number
GB574038A
GB574038A GB2130343A GB2130343A GB574038A GB 574038 A GB574038 A GB 574038A GB 2130343 A GB2130343 A GB 2130343A GB 2130343 A GB2130343 A GB 2130343A GB 574038 A GB574038 A GB 574038A
Authority
GB
United Kingdom
Prior art keywords
methyl
ethyl
dihydrobenzthiazolyl
prepared
cyanacetate
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
GB2130343A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2130343A priority Critical patent/GB574038A/en
Publication of GB574038A publication Critical patent/GB574038A/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

Ethyl 3 - methyl - dihydrobenzthiazolyl - 2 - cyanacetate is prepared by reacting 2-methyl-thiolbenzthiazole methyl p-toluenesulphonate with ethyl cyanacetate. Ethyl 3-ethyl-dihydrobenzthiazolyl - 2 - cyanacetate, ethyl 3 - methyl - dihydrobenzoxazolyl - 2 - cyanacetate, ethyl 3 - methyl - 4 : 5 - benzbenzthiazole - 2 - cyanacetate, 3 - methyl - dihydrobenzthiazolyl - 2 - acetonitrile, ethyl 3 - methyl - 5 : 6 - dimethoxydihydrobenz - thiazolyl-2-cyanacetate, and ethyl 3-methyl-dihydrobenzselenazolyl-2-cyanacetate are similarly prepared. Ethyl 3 - methyl - dihydrobenzthiazolyl - 2 - acetoacetate is prepared by reacting 2-methylthiolbenzthiazole methyl p-toluenesulphonate with ethyl acetoacetate. Diethyl 3-methyldihydrobenzthiazolyl - 2 - acetonedicarboxylate is similarly prepared. Diethyl 3 - methyl - dihydrobenzthiazolyl - 2 - malonate is prepared by reacting 2-methylthiolbenzthiazole methyl p-toluenesulphonate with diethyl malonate. Diethyl 3-methyl-dihydrobenzthiazolyl - 2 - glutaconate and diethyl 1 - ethyl - dihydroquinolylidene - 2 - malonate are similarly prepared. 4(21) - (31 - methyl - dihydrobenzthiazolyl) - 1 - phenyl - 3 - methyl - 5 - pyrazolone is prepared by reacting 2-methylthiolbenzthiazole methyl p-toluenesulphonate with 1-phenyl-3-methyl-5-pyrazolone. 2(21) - (31 - Methyl - dihydrobenzthiazolyl) - 1 : 3-indanedione is prepared by reacting 2-methylthiolbenzthiazole methyl p-toluenesulphonate with 1 : 3-indanedione. 2 - Dicyanmethylene - 3 - methyl - dihydrobenz - thiazole is prepared by reacting 2-methylthiolbenzthiazole methyl p-toluenesulphonate with methylene dinitrile.
GB2130343A 1943-12-20 1943-12-20 Improvements in or relating to photographic materials Expired GB574038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2130343A GB574038A (en) 1943-12-20 1943-12-20 Improvements in or relating to photographic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2130343A GB574038A (en) 1943-12-20 1943-12-20 Improvements in or relating to photographic materials

Publications (1)

Publication Number Publication Date
GB574038A true GB574038A (en) 1945-12-18

Family

ID=10160601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2130343A Expired GB574038A (en) 1943-12-20 1943-12-20 Improvements in or relating to photographic materials

Country Status (1)

Country Link
GB (1) GB574038A (en)

Similar Documents

Publication Publication Date Title
GB760991A (en) Improvements in sensitized photographic emulsions
GB885716A (en) Photoconductive compositions and photographic elements
CH253794A (en) Combustion chamber.
GB574038A (en) Improvements in or relating to photographic materials
FR948574A (en) Azamerocyanine dyes and photosensitive materials containing said dyes
FR936234A (en) New disazo dyes
GB698575A (en) Improvements in or relating to photographic desensitising compounds
FR1293506A (en) Camouflage dyes
FR906443A (en) Exhaust
DK80427C (en) Two-stroke engine of the tumble disc type.
GB671209A (en) Thiosemicarbazones
FR908204A (en) Saving plate with its usual films
FR936233A (en) New disazo dyes
FR927170A (en) Disazo dyes
DK66817C (en) Method of Preparation of Insulin Solutions with Extended Effect Time.
GR10388B (en) ANTI-ASSUMPTION PERSON WITH INDEPENDENT EXHAUST CHAMBER.
GB590637A (en) Improvements in and relating to photographic colour development
AT187657B (en) Long-burning stove with heat-insulated combustion chamber
FR922400A (en) fuel saver
FR913801A (en) fuel saver
DK67758C (en) Process for the preparation of internal and internal compounds.
GR11180B (en) METHOD OF PREPARATION OF PHARMACOLOGICAL COMPOSITION IN THE FORM OF SUBSTITUTED THIOVARBITURIC COMPOUND.
FR919028A (en) Shelves for ignition and heating
DK82852C (en) Process for the preparation of monoazo dyes.
DK72458C (en) Combustion chamber with spreader.