ClassID:

91087

C07C29/42 - CPC Classification

Classification description:

Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal by reaction with aldehydes or ketones with compounds containing triple carbon-to-carbon bonds, e.g. with metal-alkynes

Recent Application in this class:
#1
20250059118
2025-02-20

PROCESS FOR ETHYNYLATING SPECIFIC ALPHA, BETA-UNSATURATED KETONES

#2
20240294449
2024-09-05

PROCESS FOR THE SYNTHESIS OF PROPARGYLIC ALCOHOL BY REACTING FORMALDEHYDE WITH ACETYLENE IN THE PRESENCE OF A HOMOGENEOUS COPPER CATALYST

#3
20230311100
2023-10-05

COPPER ALUMINUM CATALYST USED FOR 1,4-BUTYNEDIOL PRODUCTION

#4
20220380280
2022-12-01

METHOD FOR ADDITION REACTION OF ACETYLENE AND KETONE COMPOUND

#5
20210276935
2021-09-09

ETHYNYLATION OF POLYUNSATURATED ALDEHYDES AND KETONES

#6
20210261488
2021-08-26

CATALYTIC ETHYNYLATION

#7
20180236439
2018-08-23

Spray-dried butynediol catalysts

#8
20160347778
2016-12-01

Alkenes as alkyne equivalents in radical cascades terminated by fragmentations

#9
20160257638
2016-09-08

Methods of producing dicarbonyl compounds

#10
20150336863
2015-11-26

Process for the production of 2-alkyl-3-butyn-2-ols

#11
20150329456
2015-11-19

(6R,10R)-6,10,14-trimetylpentadecan-2-one prepared from 6,10,14 trimetylpentadeca-5,9,13-trien-2-one or 6,10,14-trimetylpentadeca-5,9-dien-2-one

#12
20150258534
2015-09-17

Ethynylation catalyst and method of making same

#13
20150141709
2015-05-21

Process for the production of methylbutynol

#14
20150105582
2015-04-16

TREPROSTINIL PRODUCTION

#15
20150045574
2015-02-12

METHODS FOR MAKING VALERENIC ACID DERIVATIVES AND THEIR USE

#16
20140275639
2014-09-18

Ethynylation catalyst and method of making same

#17
20140058138
2014-02-27

Production of butanediol from a methane conversion process

#18
20130144083
2013-06-06

Process and method for the efficient preparation of fullerynes

#19
20120283476
2012-11-08

Synthesis of green ketone intermediate

#20
20120197041
2012-08-02

TREPROSTINIL PRODUCTION

#21
20120190888
2012-07-26

Treprostinil production

#22
20120123166
2012-05-17

METHOD OF PREPARING 1-HYDROXY-1,3,3,5,5-PENTAMETHYLCYCLOHEXANE

#23
20120053353
2012-03-01

Process for the manufacture of 3,7-dimethyl-1-octen-3-ol

#24
20120029237
2012-02-02

Autocatalytic process for the synthesis of chiral propargylic alcohols

#25
20120022283
2012-01-26

Methods for making valerenic acid derivatives and their use

#26
20110319641
2011-12-29

Treprostinil production

#27
20110295042
2011-12-01

Method for preparing propargylic alcohol catalyzed by 2-morpholinoisobornane-10-thiol

#28
20110004028
2011-01-06

PROCESS FOR PRODUCTION OF DIALCOHOL, PROCESS FOR PRODUCTION OF ALLYLHALIDE COMPOUND, AND ALLYLCHLORIDE COMPOUND

#29
20100286408
2010-11-11

Efficient process to induce enantioselectivity in procarbonyl compounds

#30
20100016643
2010-01-21

Process for preparing 1,4-butanediol

#31
20090227819
2009-09-10

Process for ubiquinone intermediates

#32
20090221860
2009-09-03

Transport of ethyne in form of α-alkynols as ethyne precursors

#33
20070265255
2007-11-15

Synthesis, structure and use of bisoxazolidines for asymmetric catalysis and synthesis

#34
20070112226
2007-05-17

Method for the production of propargyl alcohol

#35
20070004943
2007-01-04

Process for the production of a hydroxyalkyne by coupling reaction between acetaldehyde and a terminal alkyne

#36
20050272963
2005-12-08

Method for the production of acetylene alcohols

#37
20050240066
2005-10-27

Ethynylation process

#38
20050059844
2005-03-17

Ethynylation process