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Patent Information
Application Number
201821012075
Patent Number
454825
Invention Field
CHEMICAL
Publication Type
INA
Publication Number
30/2020
Status
Grant Date
dewan@rkdewanmail.com
Filing Date
Grant Date
2023-09-26
Renewal Date
2025-03-30
Abstract
Abstract: ABSTRACT A PROCESS FOR PREPARATION OF 4-METHYLENEPIPERIDINE HYDROCHLORIDE The present disclosure relates to a process for preparing 4-methylene piperidine hydrochloride. The process comprises alkylating 1-benzylpiperidine-4-one using an alkylating agent in the presence of an alkali and a first fluid medium to obtain 1-benzyl-4-methylidenepiperidine. In the next step, 1-benzyl-4-ethylidenepiperidine is subjected to debenzylation using ethyl chloroformate in the presence of a second fluid medium to obtain N-carbethoxy-4-methylene piperidine. N-carbethoxy-4-methylene piperidine is deprotected using a base in the presence of a third fluid medium to obtain 4-methylidenepiperidine. 4-methylidenepiperidine is then treated with anhydrous hydrochloride gas in the presence of a fourth fluid medium to obtain 4-methylene piperidine hydrochloride having purity greater than 95%.
Applicants
1. AMI ORGANICS PVT. LTD.
PLOT No. 440/5 & 6, ROAD No. 82/A, G.I.D.C., SACHIN, SURAT-394 230, GUJARAT., INDIA
Inventors
1. DESAI, Jignasu Thakorbhai
A/69 Meera Nagar Society , Udhna Surat 394210, Gujarat, India
2. CHOUBEY, Ajit Kumar
W/2 Riddhi Siddhi Vihar , Ganeshpuri, Khajrana Indore 452016, Madhya Pradesh, India
3. PATEL, Naresh Ramjibhai
26 Saibaba Nagar , Opp. Katargam Fire Station , Katargam, Surat 395004, Gujarat, India
4. BHAGATWALA, Hirendra Kiritbhai
A/187 Devendranagar Society, Pandesara, Govalak Road, Surat 394221, Gujarat, India
Specification
1. DESAI, Jignasu Thakorbhai
A/69 Meera Nagar Society , Udhna Surat 394210, Gujarat, India
2. CHOUBEY, Ajit Kumar
W/2 Riddhi Siddhi Vihar , Ganeshpuri, Khajrana Indore 452016, Madhya Pradesh, India
3. PATEL, Naresh Ramjibhai
26 Saibaba Nagar , Opp. Katargam Fire Station , Katargam, Surat 395004, Gujarat, India
4. BHAGATWALA, Hirendra Kiritbhai
A/187 Devendranagar Society, Pandesara, Govalak Road, Surat 394221, Gujarat, India
Eregister
| Year | CBR Date | CBR Number | Renwal Amount | Renwal Date | Normal Due Date | Renwal To | Renwal From | Due Date with Extension | Reneal Certificate Number |
|---|---|---|---|---|---|---|---|---|---|
| 3rd year | 26/12/2023 | 51378 | 4000 | 26/12/2023 | 26/12/2023 | 30/03/2021 | 30/03/2020 | 26/06/2024 | 59309 |
| 4th year | 26/12/2023 | 51378 | 4000 | 26/12/2023 | 26/12/2023 | 30/03/2022 | 30/03/2021 | 26/06/2024 | 59310 |
| 5th year | 26/12/2023 | 51378 | 4000 | 26/12/2023 | 26/12/2023 | 30/03/2023 | 30/03/2022 | 26/06/2024 | 59311 |
| 6th year | 26/12/2023 | 51378 | 4000 | 26/12/2023 | 26/12/2023 | 30/03/2024 | 30/03/2023 | 26/06/2024 | 59312 |
| 7th year | 26/12/2023 | 51378 | 12000 | 26/12/2023 | 30/03/2024 | 30/03/2025 | 30/03/2024 | 30/09/2024 | 59313 |
| 8th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 9th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 10th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 11th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 12th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 13th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 14th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 15th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 16th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 17th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 18th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 19th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 20th year | -- | -- | -- | -- | -- | -- | -- | -- | -- |
Specification
Documents
Orders
| Application Number | Applicant | Section | Controller | Decision Date | |
|---|---|---|---|---|---|
| 201821012075 |
Documents
| Name | Date | |
|---|---|---|
| 1 | 201821012075-IntimationOfGrant26-09-2023.pdf | 2023-09-26 |
| 2 | 201821012075-PatentCertificate26-09-2023.pdf | 2023-09-26 |
| 3 | 201821012075-Written submissions and relevant documents [27-05-2023(online)].pdf | 2023-05-27 |
| 4 | 201821012075-Correspondence to notify the Controller [09-05-2023(online)].pdf | 2023-05-09 |
| 5 | 201821012075-FORM-26 [09-05-2023(online)].pdf | 2023-05-09 |
| 6 | 201821012075-US(14)-HearingNotice-(HearingDate-12-05-2023).pdf | 2023-04-25 |
| 7 | 201821012075-CLAIMS [18-08-2022(online)].pdf | 2022-08-18 |
| 8 | 201821012075-FER_SER_REPLY [18-08-2022(online)].pdf | 2022-08-18 |
| 9 | 201821012075-FORM 3 [16-06-2022(online)].pdf | 2022-06-16 |
| 10 | 201821012075-FER.pdf | 2022-04-12 |
| 11 | 201821012075-FORM 18 [29-03-2022(online)].pdf | 2022-03-29 |
| 12 | 201821012075-COMPLETE SPECIFICATION [27-03-2019(online)].pdf | 2019-03-27 |
| 13 | 201821012075-ENDORSEMENT BY INVENTORS [27-03-2019(online)].pdf | 2019-03-27 |
| 14 | 201821012075-OTHERS-ORIGINAL UR 6( 1A) FORM 1)-040618.pdf | 2018-09-10 |
| 15 | 201821012075-Proof of Right (MANDATORY) [02-06-2018(online)].pdf | 2018-06-02 |
| 16 | 201821012075-FORM-26 [16-04-2018(online)].pdf | 2018-04-16 |
| 17 | 201821012075-DECLARATION OF INVENTORSHIP (FORM 5) [30-03-2018(online)].pdf | 2018-03-30 |
| 18 | 201821012075-FORM 1 [30-03-2018(online)].pdf | 2018-03-30 |
| 19 | 201821012075-PROOF OF RIGHT [30-03-2018(online)].pdf | 2018-03-30 |
| 20 | 201821012075-PROVISIONAL SPECIFICATION [30-03-2018(online)].pdf | 2018-03-30 |
| 21 | 201821012075-STATEMENT OF UNDERTAKING (FORM 3) [30-03-2018(online)].pdf | 2018-03-30 |