JP2022529573A - 特定の脱水素化方法(i) - Google Patents
特定の脱水素化方法(i) Download PDFInfo
- Publication number
- JP2022529573A JP2022529573A JP2021556320A JP2021556320A JP2022529573A JP 2022529573 A JP2022529573 A JP 2022529573A JP 2021556320 A JP2021556320 A JP 2021556320A JP 2021556320 A JP2021556320 A JP 2021556320A JP 2022529573 A JP2022529573 A JP 2022529573A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- formula
- present
- ceremony
- producing
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000006356 dehydrogenation reaction Methods 0.000 title claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 66
- 230000003647 oxidation Effects 0.000 claims description 14
- 238000007254 oxidation reaction Methods 0.000 claims description 14
- 239000000376 reactant Substances 0.000 claims description 14
- NSSIZMPQSZKECB-UHFFFAOYSA-N (diethoxyamino)oxyethane Chemical compound CCON(OCC)OCC NSSIZMPQSZKECB-UHFFFAOYSA-N 0.000 claims description 6
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000012442 inert solvent Substances 0.000 claims description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003849 aromatic solvent Substances 0.000 claims description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 101500027295 Homo sapiens Sperm histone HP3 Proteins 0.000 description 5
- 102400000926 Sperm histone HP3 Human genes 0.000 description 5
- 238000004440 column chromatography Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 239000003039 volatile agent Substances 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 4
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 3
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 3
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 235000019155 vitamin A Nutrition 0.000 description 3
- 239000011719 vitamin A Substances 0.000 description 3
- 229940045997 vitamin a Drugs 0.000 description 3
- KUNNUNBSGQSGDY-UHFFFAOYSA-N 2-butyl-6-methylphenol Chemical compound CCCCC1=CC=CC(C)=C1O KUNNUNBSGQSGDY-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 229960000342 retinol acetate Drugs 0.000 description 2
- QGNJRVVDBSJHIZ-QHLGVNSISA-N retinyl acetate Chemical compound CC(=O)OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C QGNJRVVDBSJHIZ-QHLGVNSISA-N 0.000 description 2
- 235000019173 retinyl acetate Nutrition 0.000 description 2
- 239000011770 retinyl acetate Substances 0.000 description 2
- BDMPVVYWKWCNKK-SHGBQBHBSA-N (2e,4e,6e)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6-trienal Chemical compound O=C\C=C(/C)\C=C\C=C(/C)CCC1=C(C)CCCC1(C)C BDMPVVYWKWCNKK-SHGBQBHBSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- -1 fluoranyl Chemical group 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
- C07C403/06—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by singly-bound oxygen atoms
- C07C403/12—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by singly-bound oxygen atoms by esterified hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
- C07C403/14—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/42—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor
- C07C5/44—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor with halogen or a halogen-containing compound as an acceptor
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/02—Preparation of carboxylic acid esters by interreacting ester groups, i.e. transesterification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/44—Preparation of carboxylic acid esters by oxidation-reduction of aldehydes, e.g. Tishchenko reaction
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/02—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen
- C07C69/12—Acetic acid esters
- C07C69/14—Acetic acid esters of monohydroxylic compounds
- C07C69/145—Acetic acid esters of monohydroxylic compounds of unsaturated alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/02—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen
- C07C69/22—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen having three or more carbon atoms in the acid moiety
- C07C69/24—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen having three or more carbon atoms in the acid moiety esterified with monohydroxylic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Steroid Compounds (AREA)
Abstract
Description
[式中、
Rは-CH=O又は-COOR’であり、R’は-C1~C16アルキル基(好ましくは-CH3又は-(CH2)14CH3)である]の化合物である。
[式中、
R1は-CN、-Cl又は-Fであり、
R2は-CN、-Cl又は-Fであり、
R3は-H、-CH3、-Cl又は-Fであり、及び
R4は-H、-CH3、-Cl又は-Fである]を有する。
[式中、
Rは-CH=O又は-COOR’であり、R’は-C1~C16アルキル基(好ましくは-CH3又は-CH2CH3)である]の化合物を製造する方法(P)であって、
方法(P)が、式(I)
[式中、
Rは式(II)の化合物における場合と同じ意味を有する]の化合物の選択的脱水素化によるものであり、
当該脱水素化が、少なくとも1つの、式(III)
[式中、
R1は-CN、-Cl又は-Fであり、
R2は-CN、-Cl又はFであり、
R3は-H、-CH3、-Cl又は-Fであり、及び
R4は-H、-CH3、-Cl又は-Fである]の酸化反応剤の存在下で行われる、
式(II)の化合物を製造する方法(P)に関する。
[実施例1:]
7,8-ジヒドロレチニルアクテート(7,8-Dihydroretinylactate)(150mg、1.0当量)をトルエン(5mL)に溶解し、DDQ(1.0当量)及びトリエトキシアミン(0.5モル%)を添加した。反応混合物を90℃で0.5時間撹拌した。溶液をシリカのプラグで濾過し、揮発分を全て減圧下で蒸発させた。カラムクロマトグラフィーにより精製して、所望の生成物を得た(収率54%)。
7,8-ジヒドロレチニルアクテート(7,8-Dihydroretinylactate)(150mg、1.0当量)をトルエン(5mL)に溶解し、DDQ(1.0当量)を添加した。反応混合物を90℃で4時間撹拌した。溶液をシリカのプラグで濾過し、揮発分を全て減圧下で蒸発させた。カラムクロマトグラフィーにより精製して、所望の生成物を得た(収率30%)。
7,8-ジヒドロレチナール(150mg、1.0当量)をトルエン(5mL)に溶解し、フルオラニル(2.0当量)を添加した。反応混合物を60℃で24時間撹拌した。溶液をシリカのプラグで濾過し、揮発分を全て減圧下で蒸発させた。カラムクロマトグラフィーにより精製して、所望の生成物を得た(収率29%)。
7,8-ジヒドロレチニルアセテート(180mg、1.0当量)を酢酸エチル(20mL)に溶解し、DDQ(1.0当量)及びトリエトキシアミン(0.5モル%)を添加した。反応混合物を77℃で0.5時間撹拌した。溶液をシリカのプラグで濾過し、揮発分を全て減圧下で蒸発させた。カラムクロマトグラフィーにより精製して、所望の生成物を得た(収率74%)。
7,8-ジヒドロレチニルアセテート(181mg、1.0当量)を酢酸エチル(5mL)に溶解し、DDQ(1.0当量)及びトリエトキシアミン(0.5モル%)を添加した。反応混合物を室温で0.5時間、及び77℃でo.5時間撹拌した。溶液をシリカのプラグで濾過し、揮発分を全て減圧下で蒸発させた。カラムクロマトグラフィーにより精製して、所望の生成物を得た(収率75%)。
Claims (13)
- 式(II)
[式中、
Rは-CH=O又は-COOR’であり、R’は-C1~C16アルキル基(好ましくは-CH3又は
-CH2CH3又は-C15H31)である]の化合物を製造する方法であって、
前記方法が、式(I)
[式中、
Rは式(II)の化合物における場合と同じ意味を有する]の化合物の選択的脱水素化によるものであり、
前記脱水素化が、少なくとも1つの、式(III)
[式中、
R1は-CN、-Cl又は-Fであり、
R2は-CN、-Cl又は-Fであり、
R3は-H、-CH3、-Cl又は-Fであり、及び
R4は-H、-CH3、-Cl又は-Fである]の酸化反応剤の存在下で行われる、
式(II)の化合物を製造する方法。 - 前記式(III)の酸化反応剤の量が、(式(II)の化合物に対して)0.5モル当量から5モル当量までである、請求項1~3のいずれか一項に記載の方法。
- 少なくとも1つの追加の化合物の存在下で行われる、請求項1~4のいずれか一項に記載の方法。
- 前記追加の化合物が、ピリジン、ブチルヒドロキシルトルオール、ヒドロキノン及びトリエトキシアミンからなる群から選択される、請求項5に記載の方法。
- 前記追加の化合物が、(式(II)の化合物に対して)0.001~1モル当量の量で添加される、請求項5又は請求項6に記載の方法。
- 少なくとも1つの不活性溶媒の存在下で行われる、請求項1~7のいずれか一項に記載の方法。
- 前記溶媒が芳香族溶媒である、請求項8に記載の方法。
- 0℃~120℃の温度で行われる、請求項1~9のいずれか一項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19169206 | 2019-04-15 | ||
EP19169206.0 | 2019-04-15 | ||
PCT/EP2020/059477 WO2020212163A1 (en) | 2019-04-15 | 2020-04-03 | Specific dehydrogenation process (i) |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022529573A true JP2022529573A (ja) | 2022-06-23 |
JPWO2020212163A5 JPWO2020212163A5 (ja) | 2022-12-05 |
Family
ID=66182394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021556320A Pending JP2022529573A (ja) | 2019-04-15 | 2020-04-03 | 特定の脱水素化方法(i) |
Country Status (6)
Country | Link |
---|---|
US (1) | US11851402B2 (ja) |
EP (1) | EP3956304A1 (ja) |
JP (1) | JP2022529573A (ja) |
CN (1) | CN113677662A (ja) |
BR (1) | BR112021020268A2 (ja) |
WO (1) | WO2020212163A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6289657A (ja) * | 1985-10-16 | 1987-04-24 | Kuraray Co Ltd | ビタミンa又はそのカルボン酸エステルの製造方法 |
JP2015503531A (ja) * | 2011-12-27 | 2015-02-02 | ディーエスエム アイピー アセッツ ビー.ブイ. | ビタミンa中間体の触媒合成 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1254613B (de) * | 1966-05-17 | 1967-11-23 | Basf Ag | Verfahren zur Herstellung von Vitamin A-Aldehyd |
EP0187259B2 (en) | 1985-01-10 | 1996-05-15 | Kuraray Co., Ltd. | Process for producing vitamin A or its carboxylic acid esters, and intermediate compounds useful for the process |
EA027468B1 (ru) * | 2013-05-08 | 2017-07-31 | ДСМ АйПи АССЕТС Б.В. | Способ получения дегидролиналил ацетата(ii) |
-
2020
- 2020-04-03 BR BR112021020268A patent/BR112021020268A2/pt unknown
- 2020-04-03 EP EP20714639.0A patent/EP3956304A1/en active Pending
- 2020-04-03 CN CN202080028170.4A patent/CN113677662A/zh active Pending
- 2020-04-03 US US17/603,114 patent/US11851402B2/en active Active
- 2020-04-03 WO PCT/EP2020/059477 patent/WO2020212163A1/en unknown
- 2020-04-03 JP JP2021556320A patent/JP2022529573A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6289657A (ja) * | 1985-10-16 | 1987-04-24 | Kuraray Co Ltd | ビタミンa又はそのカルボン酸エステルの製造方法 |
JP2015503531A (ja) * | 2011-12-27 | 2015-02-02 | ディーエスエム アイピー アセッツ ビー.ブイ. | ビタミンa中間体の触媒合成 |
Non-Patent Citations (2)
Title |
---|
O.O.TUTORSKAYA ET AL.: "SYNTHETIC INVESTIGATIONS IN THE CHEMISTRY OF POLYENE COMPOUNDS LII. SYNTHESIS OF RETINOIC AND DIHYDR", JOURNAL OF ORGANIC CHEMISTRY OF THE USSR, vol. 27, JPN6023041702, 1991, pages 1237 - 1240, XP055698496, ISSN: 0005170410 * |
WING C LAW; ET AL: "THE NECESSITY OF AN INTACT POLYENE FOR THE BIOLOGICAL ISOMERIZATION OF VITAMIN A", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. VOL:110, NR:17, JPN5022007895, August 1998 (1998-08-01), pages 5915 - 5917, ISSN: 0005170411 * |
Also Published As
Publication number | Publication date |
---|---|
EP3956304A1 (en) | 2022-02-23 |
US20220194891A1 (en) | 2022-06-23 |
WO2020212163A1 (en) | 2020-10-22 |
BR112021020268A2 (pt) | 2021-12-07 |
US11851402B2 (en) | 2023-12-26 |
CN113677662A (zh) | 2021-11-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2013225123B2 (en) | Process for the preparation of phenyl substituted 3 - difluoromethyl - 1 -methyl - 1H - pyrazole - 4 - carboxylic n-methoxy- [1 -methyl- 2 - phenylethyl] amides | |
JP2008544955A (ja) | 触媒スクリャービン反応 | |
JP2022529573A (ja) | 特定の脱水素化方法(i) | |
WO2018184196A1 (zh) | 一种制备2-芳基丙二酰胺的方法及其应用 | |
CS198298B2 (en) | Method of producing substituted benzylesters of vinyl cyclopropane carboxylic acids | |
KR101603324B1 (ko) | 3-알킬티오-2-브로모피리딘 화합물의 제조방법 | |
JP3798446B2 (ja) | 高い含有率のall−E−異性体を有するポリエンカルボニル化合物並びにそのアセタール又はケタールの改良された製法 | |
JPS61254670A (ja) | 線状キナクリドンの製法 | |
CN112521375A (zh) | 一种瑞舒伐他汀钙中间体的制备方法 | |
CN114026065B (zh) | 制备视黄醛的新方法 | |
JP2022528611A (ja) | 新規なエノールアセテート | |
JP3171400B2 (ja) | ヒドロキシカルボニル誘導体およびその製造方法 | |
JP5151979B2 (ja) | 2−オキセタノン誘導体およびその製造法 | |
JP2023506144A (ja) | 脱水素化方法 | |
JP7298088B2 (ja) | 2-メチル-4-(2,6,6-トリメチル-1-シクロヘキセン-1-イル)-2-ブテナールを生成するためのプロセス | |
EP1948584B1 (en) | Process for the preparation of cyclopentanone derivatives | |
JP7109000B2 (ja) | カルボン酸プレニル類及びプレノール類の製造方法 | |
JP2022528612A (ja) | 新規なエノールアセテート(ii) | |
KR20240069893A (ko) | 고순도 9-페닐카바졸 유도체의 신규한 제조방법 | |
JP2024509535A (ja) | 4-オキソテトラヒドロフラン-2-カルボン酸アルキルの調製方法 | |
WO2024013382A1 (en) | Process for preparing benzoic acid esters and intermediates thereof | |
KR20110007741A (ko) | 5-(치환된 페닐알킬)-2-알콕시-5-아미노-벤조산 화합물의 제조방법 | |
KR20190033945A (ko) | 테트라하이드로아이소퀴놀린 유도체의 제조방법 | |
JP2021516667A (ja) | スプリンゲンを製造するプロセス | |
JP2008513527A (ja) | クロロメチル化1,4−ベンゾキノンの実用的な費用効率の高い合成 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220608 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20221125 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20221125 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20231010 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20231013 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20240110 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20240229 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20240514 |