GB1206477A - Process for preparing pyrocarbonate esters - Google Patents

Process for preparing pyrocarbonate esters

Info

Publication number
GB1206477A
GB1206477A GB4956967A GB4956967A GB1206477A GB 1206477 A GB1206477 A GB 1206477A GB 4956967 A GB4956967 A GB 4956967A GB 4956967 A GB4956967 A GB 4956967A GB 1206477 A GB1206477 A GB 1206477A
Authority
GB
United Kingdom
Prior art keywords
naphthalene
chloride
esters
pyrocarbonate
disulphonyl
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
GB4956967A
Inventor
Shinzaburo Sumimoto
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.)
Shionogi and Co Ltd
Original Assignee
Shionogi and Co 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 Shionogi and Co Ltd filed Critical Shionogi and Co Ltd
Priority to GB4956967A priority Critical patent/GB1206477A/en
Publication of GB1206477A publication Critical patent/GB1206477A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C68/00—Preparation of esters of carbonic or haloformic acids
    • C07C68/06—Preparation of esters of carbonic or haloformic acids from organic carbonates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)

Abstract

1,206,477. Pyrocarbonate esters. SHIONOGI & CO. Ltd. 1 Nov., 1967, No. 49569/67. Addition to 1,130,271. Heading C2C. Esters of pyrocarbonic acid are prepared by reacting 1 mole of a naphthalene sulphonyl chloride of formula in which one or more of the hydrogen atoms may be substituted with a halogen atom or a nitro group with about 2 moles of one or more alkali metal carbonate half esters of general formula MeOCOOR<SP>1</SP> in which Me is sodium or potassium, and R<SP>1</SP> is a C 1 -C 3 alkyl group or an aralkyl group, e.g. a benzyl group. In the examples diethyl pyrocarbonate [O(COOC 2 H 5 ) 2 ] is prepared by reacting (a) naphthalene-1-sulphonyl chloride; (b) naphthalene-2-sulphonyl chloride; (c) naphthalene-1,5-disulphonyl chloride; (d) naphthalene-2,7-disulphonyl chloride; (e) naphthalene-2,6-disulphonyl chloride, and (f) naphthalene-1,3,6-trisulphonyl chloride.
GB4956967A 1967-11-01 1967-11-01 Process for preparing pyrocarbonate esters Expired GB1206477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4956967A GB1206477A (en) 1967-11-01 1967-11-01 Process for preparing pyrocarbonate esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4956967A GB1206477A (en) 1967-11-01 1967-11-01 Process for preparing pyrocarbonate esters

Publications (1)

Publication Number Publication Date
GB1206477A true GB1206477A (en) 1970-09-23

Family

ID=10452768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4956967A Expired GB1206477A (en) 1967-11-01 1967-11-01 Process for preparing pyrocarbonate esters

Country Status (1)

Country Link
GB (1) GB1206477A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0468404A2 (en) * 1990-07-23 1992-01-29 Sumitomo Chemical Company, Limited Process for preparing di-tert.-butyl dicarbonate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0468404A2 (en) * 1990-07-23 1992-01-29 Sumitomo Chemical Company, Limited Process for preparing di-tert.-butyl dicarbonate
EP0468404A3 (en) * 1990-07-23 1992-04-22 Sumitomo Chemical Company, Limited Process for preparing di-tert.-butyl dicarbonate

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Legal Events

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