GB819779A - Improvements in method of making a fungicidal substance - Google Patents

Improvements in method of making a fungicidal substance

Info

Publication number
GB819779A
GB819779A GB39861/57A GB3986157A GB819779A GB 819779 A GB819779 A GB 819779A GB 39861/57 A GB39861/57 A GB 39861/57A GB 3986157 A GB3986157 A GB 3986157A GB 819779 A GB819779 A GB 819779A
Authority
GB
United Kingdom
Prior art keywords
parts
product
fungicidal
hours
nabam
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
GB39861/57A
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.)
Uniroyal Inc
Original Assignee
United States Rubber 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 United States Rubber Co filed Critical United States Rubber Co
Publication of GB819779A publication Critical patent/GB819779A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C333/00—Derivatives of thiocarbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C333/14—Dithiocarbamic acids; Derivatives thereof
    • C07C333/30—Dithiocarbamic acids; Derivatives thereof having sulfur atoms of dithiocarbamic groups bound to other sulfur atoms
    • C07C333/32—Thiuramsulfides; Thiurampolysulfides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

A fungicidal product believed to be a poly(ethylene bis-thiuram disulphide) is prepared by mixing disodium ethylene bis-dithiocarbamate (nabam), water or a volatile organic solvent liquid medium (e.g. benzene, n-hexane, CHCl3, petroleum ether or ligroin), and phosgene, at a temperature of from -10 DEG to 20 DEG C. for a period of from 1 to 20 hours, separating the resulting solid material and allowing the latter to evolve carbon oxysulphide spontaneously to leave a yellow fungicidal product. In an example, 52 parts (0.2 mol.) of anhydrous nabam were added to 500 parts of dry benzene and the mixture was cooled to 60 DEG C.; liquid phosgene (22 parts; 0.22 mol.) was added with stirring and the temperature was maintained at 7 DEG C. for 8 hours. After filtering and air drying, about 67 parts of material was obtained; this was washed to remove sodium chloride and the remaining solid was filtered and air dried, giving approximately 36 parts of a dull, white compound (m.p. 112 DEG C. with decomposition) which on standing for 36 hours at room temperature split off carbon oxysulphide to yield 23 parts (64 per cent yield) of an odourless, light yellow product, which softened and decomposed at about 132-135 DEG C. and had the X-ray diffraction pattern shown in Specification 816,341. The product is insoluble in water, soluble with decomposition in pyridine and alkaline aqueous alcohol or acetone, and partially soluble in acetone. It may be mixed with clay and wetting agents to form a fungicidal wettable powder.ALSO:A fungicidal composition is obtained by mixing nabam, water or a volatile organic solvent liquid medium, and phosgene at a temperature of - 10 DEG to 20 DEG C. for a period of an hour to 20 hours, separating the resulting solid material which is allowed to evolve carbon oxysulphide spontaneously to yield a yellow fungicidal product. Wetting agents and clay may be incorporated with the product. Specification 816,341 is referred to.
GB39861/57A 1957-01-28 1957-12-23 Improvements in method of making a fungicidal substance Expired GB819779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US819779XA 1957-01-28 1957-01-28

Publications (1)

Publication Number Publication Date
GB819779A true GB819779A (en) 1959-09-09

Family

ID=22167613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39861/57A Expired GB819779A (en) 1957-01-28 1957-12-23 Improvements in method of making a fungicidal substance

Country Status (1)

Country Link
GB (1) GB819779A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165578B (en) * 1959-12-22 1964-03-19 Schering Ag Process for the preparation of thiuram disulfides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165578B (en) * 1959-12-22 1964-03-19 Schering Ag Process for the preparation of thiuram disulfides

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