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2 781 794

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IPC

C07D273/01(2006-01-01)

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Application

2019132798, 2019-11-27

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Start date

2019-11-27

(22)

Actual filing date

2019-11-27

(45)

Published

2022-10-18

(72)

Inventor

Dzhemilev Usein MemetovichIbragimov Askhat GabdrakhmanovichMakhmudiyarova Nataliya NailevnaShangaraev Kamil RailevichAgliullin Marat Radikovich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Nauchnoe Uchrezhdenie Ufimskij Federalnyj Issledovatelskij Tsentr Rossijskoj Akademii Nauk

METHOD FOR PRODUCTION OF 7ʹ-ARYLSPIRO[BICYCLO[2.2.1]HEPTANE-2,3ʹ-[1,2,4,5,7]TETRAOXAZOCANES] Russian patent published in 2022 - IPC C07D273/01

Abstract RU 2781794 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method for the production of 7'-arylspiro[bicyclo[2.2.1]heptane-2,3'-[1,2,4,5,7]tetraoxazocanes] (1) by interaction of arylamines (aniline, m,p-chloraniline, p-fluoraniline) with spiro[bicyclo[2.2.1]heptane-2,3'-[1,2,4,5,7]pentaoxacan] in the presence of a catalyst LaCl₃·6H₂O taken in a molar ratio of arylamine:spiro[bicyclo[2.2.1]heptane-2,3'-[1,2,4,5,7]pentaoxacan]:LaCl₃·6H₂O=10:(10-12):(0.3-0.7), at a room temperature (20°C) and atmospheric pressure in tetrahydrofuran as a solvent for 4-6 h.

EFFECT: method for the production of 7'-arylspiro[bicyclo[2.2.1]heptane-2,3'-[1,2,4,5,7]tetraoxazocanes] (1) with high yield is developed.

1 cl, 1 tbl, 1 ex

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RU 2 781 794 C1

Authors

Dzhemilev Usein Memetovich

Ibragimov Askhat Gabdrakhmanovich

Makhmudiyarova Nataliya Nailevna

Shangaraev Kamil Railevich

Agliullin Marat Radikovich

Dates

2022-10-18—Published

2019-11-27—Filed