GB1352196A - Amido-seleno ethers - Google Patents

Amido-seleno ethers

Info

Publication number
GB1352196A
GB1352196A GB1352196DA GB1352196A GB 1352196 A GB1352196 A GB 1352196A GB 1352196D A GB1352196D A GB 1352196DA GB 1352196 A GB1352196 A GB 1352196A
Authority
GB
United Kingdom
Prior art keywords
formula
esters
produced
amido
june
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
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.)
IFLORD Ltd
Original Assignee
IFLORD Ltd
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 IFLORD Ltd filed Critical IFLORD Ltd
Publication of GB1352196A publication Critical patent/GB1352196A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/305—Additives other than developers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C391/00—Compounds containing selenium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
    • G03C1/346—Organic derivatives of bivalent sulfur, selenium or tellurium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1352196 Amido-seleno ethers ILFORD Ltd 28 June 1972 [28 June 1971] 30259/71 Heading C2C [Also in Division G2] A symmetrical selenoether of general formula where R 1 and R 2 are the same or different and are H atoms or C 1 -C 4 alkyl groups, or R 1 is H and R 2 is -NH 2 is prepared by one of the following methods: (a) Reacting a selenide ion with an ethylenically unsaturated compound of formula CH 2 = CHG where G is an electron withdrawing group selected from -COOR 3 and -CONR 1 R 2 where R 1 and R 2 are as above and R 3 is a C 1 -C 4 alkyl group. The amides may be prepared from the esters as in (c) below. (b) A selenide ion may nucleophilically displace halogen from a compound of formula HalCH 2 CH 2 G where G is as defined above; or (c) Esters of the type produced in (a) and (b) may also be produced by reacting an alkyl acrylate with a selenide ion. The esters produced may be converted to the amide by reaction with excess amine. The compounds of Formula I are used to reduce the time taken for development in photography.
GB1352196D 1971-06-28 1971-06-28 Amido-seleno ethers Expired GB1352196A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3025971 1971-06-28

Publications (1)

Publication Number Publication Date
GB1352196A true GB1352196A (en) 1974-05-08

Family

ID=10304811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1352196D Expired GB1352196A (en) 1971-06-28 1971-06-28 Amido-seleno ethers

Country Status (1)

Country Link
GB (1) GB1352196A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112162A2 (en) 1982-12-13 1984-06-27 Konica Corporation Light-sensitive silver halide photographic material
EP0198277A1 (en) * 1985-04-12 1986-10-22 A. Nattermann & Cie. GmbH Diseleno-bis-benzamides of primary and secondary amines, processes for their production and pharmaceutical preparations containing them
JPH02132434A (en) * 1988-11-14 1990-05-21 Fuji Photo Film Co Ltd Silver halide photographic sensitive material
CN110803952A (en) * 2019-11-06 2020-02-18 刘俐 Crop stem and leaf surface heavy metal resistance control selenium-rich fertilizer capable of increasing crop yield and application method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112162A2 (en) 1982-12-13 1984-06-27 Konica Corporation Light-sensitive silver halide photographic material
EP0198277A1 (en) * 1985-04-12 1986-10-22 A. Nattermann & Cie. GmbH Diseleno-bis-benzamides of primary and secondary amines, processes for their production and pharmaceutical preparations containing them
JPH02132434A (en) * 1988-11-14 1990-05-21 Fuji Photo Film Co Ltd Silver halide photographic sensitive material
JPH087394B2 (en) 1988-11-14 1996-01-29 富士写真フイルム株式会社 Silver halide photographic material
CN110803952A (en) * 2019-11-06 2020-02-18 刘俐 Crop stem and leaf surface heavy metal resistance control selenium-rich fertilizer capable of increasing crop yield and application method thereof

Similar Documents

Publication Publication Date Title
GB1488903A (en) X-ray contrast media
DE3367092D1 (en) Improvements relating to compounds useful in radiotherapy or chemotherapy
ES299652A1 (en) A procedure for the preparation of steroid compounds (Machine-translation by Google Translate, not legally binding)
GB1352196A (en) Amido-seleno ethers
GB1358948A (en) Process for the manufacture of cycloalkenone esters
ES471267A1 (en) Lower alkyl 2-tri-(lower)alkylsilylacetylene-N-carbethoxyglycinates and process for using same
ES317454A1 (en) Procedure for the preparation of amidas of derivatives of lysergic acid. (Machine-translation by Google Translate, not legally binding)
ES274336A1 (en) Procedure for the preparation of new compounds of 1,5-benzodioxepano (Machine-translation by Google Translate, not legally binding)
GB1223635A (en) Substituted cysteamines of use in anti-seborrhoeic compositions
ES451375A1 (en) 2,4-diamino-5-benzylpyrimidines
ES398106A1 (en) 5-piperidine-4-spiro- oxazolidinones method for their preparation and applications thereof
ES390275A1 (en) A procedure for the preparation of 1,2-dialquil (lower) pirrolydines. (Machine-translation by Google Translate, not legally binding)
ES440005A1 (en) 3{62 -(4-Oxo-{60 -L-rhamnosyl)-{62 -hydroxy-bufa-4,20,22-trienolide
GB866786A (en) Manufacture of new sulphonamides
ES266736A3 (en) A procedure to prepare acrylates and methacrylates of dialcohylphosphonococohyll (Machine-translation by Google Translate, not legally binding)
ES216773A1 (en) A procedure for the preparation of alkyl derivatives in position 4 of malonyl hydrazinic cyclic derivatives (Machine-translation by Google Translate, not legally binding)
GB838812A (en) Electrodeposition of nickel
ES255673A1 (en) Procedure for the obtaining of new esters (Machine-translation by Google Translate, not legally binding)
ES358130A1 (en) A procedure for the preparation of nitrofurilnitronas. (Machine-translation by Google Translate, not legally binding)
ES294468A3 (en) A method for the preparation of an organophosphorus compound (Machine-translation by Google Translate, not legally binding)
ES243381A1 (en) Procedure for obtaining new derivatives of piperidil-2 phenylmethanols and their added salts (Machine-translation by Google Translate, not legally binding)
GB1220500A (en) Novel radioactive compounds derived from difluoresceinylmercury and labelled with radioactive mercury isotopes
ES233667A1 (en) Method of production of a prepared to combat the red spider (Machine-translation by Google Translate, not legally binding)
GB1499054A (en) Stable chelocardin composition
ES373093A1 (en) Procedure for the preparation of substitute carbilliens. (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees