ES8707517A1 - Un procedimiento para preparar ester isopropilidenico ciclico de acido malonico - Google Patents

Un procedimiento para preparar ester isopropilidenico ciclico de acido malonico

Info

Publication number
ES8707517A1
ES8707517A1 ES556648A ES556648A ES8707517A1 ES 8707517 A1 ES8707517 A1 ES 8707517A1 ES 556648 A ES556648 A ES 556648A ES 556648 A ES556648 A ES 556648A ES 8707517 A1 ES8707517 A1 ES 8707517A1
Authority
ES
Spain
Prior art keywords
acid
meldrum
preparation
acetone
slow
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
ES556648A
Other languages
English (en)
Other versions
ES556648A0 (es
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.)
Dow Chemical Co
Original Assignee
Dow Chemical 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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of ES8707517A1 publication Critical patent/ES8707517A1/es
Publication of ES556648A0 publication Critical patent/ES556648A0/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
    • C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Steroid Compounds (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Static Random-Access Memory (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)

Abstract

PROCEDIMIENTO PARA LA PREPARACION DE ESTER ISOPROPILIDENICO-CICLICO DE CAIDO MALONICO. CONSISTE EN MEZCLAR ACETONA, ACIDO MALONICO Y UN CATALIZADOR ACIDO EN RELACIONES MOLARES ADECUADAS, PARA FORMAR UNA MEZCLA DE UNA FASE EN DISOLUCION DE ACETONA Y CATALIZADOR ACIDO, Y EN AÑADIR ANHIDRIDO ACETICO A LA MEZCLA FORMADA, EN UNA CANTIDAD QUE VA DESDE 0 POR CIENTO DE EXCESO MOLAR HASTA 150 POR CIENTO DE EXCESO MOLAR RELATIVO, A LA CONCENTRACION MOLAR TOTAL DE ACIDO MALONICO. LA ADICION DE ANHIDRIDO ACETICO SE REALIZA A UNA VELOCIDAD TAL QUE EN CUALQUIER INSTANTE, DURANTE LA ADICION DE ANHIDRIDO ACETICO, LA CONCENTRACION DEL ANHIDRIDO SIN REACCIONAR EN LA MEZCLA NO EXCEDA EL 14% EN MOLES CON RELACION A LA CONCENTRACION MOLAR DE ACIDO MALONICO CONJUNTAMENTE PRESENTE EN LA FASE DE DISOLUCION.
ES556648A 1985-06-26 1986-06-25 Un procedimiento para preparar ester isopropilidenico ciclico de acido malonico Expired ES8707517A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/749,145 US4613671A (en) 1985-06-26 1985-06-26 Process for the preparation of Meldrum's acid

Publications (2)

Publication Number Publication Date
ES8707517A1 true ES8707517A1 (es) 1987-08-01
ES556648A0 ES556648A0 (es) 1987-08-01

Family

ID=25012458

Family Applications (1)

Application Number Title Priority Date Filing Date
ES556648A Expired ES8707517A1 (es) 1985-06-26 1986-06-25 Un procedimiento para preparar ester isopropilidenico ciclico de acido malonico

Country Status (14)

Country Link
US (1) US4613671A (es)
EP (1) EP0206673B1 (es)
JP (1) JPS624282A (es)
AT (1) ATE46694T1 (es)
CA (1) CA1255319A (es)
DE (1) DE3665863D1 (es)
DK (1) DK303686A (es)
ES (1) ES8707517A1 (es)
FI (1) FI862719A (es)
GR (1) GR861621B (es)
HU (1) HUT45981A (es)
IL (1) IL79065A0 (es)
NO (1) NO862549L (es)
PT (1) PT82835B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188057A (en) * 1989-09-18 1993-02-23 Kabushiki Kaisha Toshiba Developing apparatus
US5243053A (en) * 1992-02-26 1993-09-07 Eli Lilly And Company Methylene meldrum's acid precursors
KR20010045418A (ko) * 1999-11-05 2001-06-05 박종섭 신규한 포토레지스트 단량체, 그의 중합체 및 이를함유하는 포토레지스트 조성물
JP2005343837A (ja) 2004-06-04 2005-12-15 Fuji Photo Film Co Ltd １，３−ジオキソラン−４，６−ジオン化合物の製造方法
JP2015505825A (ja) * 2011-11-30 2015-02-26 ソルヴェイ（ソシエテ アノニム） メルドラム酸のフッ素化誘導体、その調製方法、および溶媒添加剤としてのそれらの使用
JP6887367B2 (ja) 2017-12-08 2021-06-16 マクセルイズミ株式会社 ロータリー式電気かみそり
CN108864035A (zh) * 2018-06-15 2018-11-23 浙江巨化技术中心有限公司 一种全卤代杂环烷烃的合成方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065440A (en) * 1976-08-09 1977-12-27 Standard Oil Company (Indiana) Malonate ester chain coupling of polyesters
US4496368A (en) * 1983-06-17 1985-01-29 Texaco Inc. Isopropylidene malonate-N-alkyl alkylenediamine condensation products

Also Published As

Publication number Publication date
NO862549D0 (no) 1986-06-25
ATE46694T1 (de) 1989-10-15
ES556648A0 (es) 1987-08-01
PT82835A (en) 1986-07-01
US4613671A (en) 1986-09-23
EP0206673B1 (en) 1989-09-27
DK303686D0 (da) 1986-06-26
FI862719A0 (fi) 1986-06-25
CA1255319A (en) 1989-06-06
DE3665863D1 (en) 1989-11-02
JPS624282A (ja) 1987-01-10
NO862549L (no) 1986-12-29
IL79065A0 (en) 1986-09-30
GR861621B (en) 1986-10-21
HUT45981A (en) 1988-09-28
DK303686A (da) 1986-12-27
EP0206673A2 (en) 1986-12-30
PT82835B (pt) 1988-12-15
EP0206673A3 (en) 1987-09-23
FI862719A (fi) 1986-12-27

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