Stereochemistry of Decarboxylation of trans-4-Hydroxycinnamic Acid by Aerobacter

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Stereochemistry of decarboxylation of trans-4-hydroxycinnamic acid by Aerobacter.

The stereochemistry of the decarboxylation of trans-p-coumaric acid to 4-hydroxystyrene by Aerobacter aerogenes has been examined. The decarboxylation has been found to proceed with retention of the geometry about the trans-substituted double-bond.

متن کامل

Enzyme reactions with phenolic compounds: formation of hydroxystyrenes through the decarboxylation of 4-hydroxycinnamic acids by Aerobacter.

A constitutive enzyme present in strains of Aerobacter has been found to decarboqdate phenylacrylic (cinnamic) acids possessing a 4-hydroxy group to the corresponding hydroxystyrenes nonoxidatively. Two such products, 4-hydroxystyrene (4-vinylphenol) and 3 ,Cdihydroxystyrene (4-vinylcatechol) from p-coumaric and caffeic acids, respectively, were purified and identified. Only 4-hydroxystyrene ha...

متن کامل

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

15 صفحه اول

Enzyme Reactions with Phenolic Compounds: Formation Hydroxystyrenes through the Decarboxylation of PHydroxycinnamic Acids by Aerobacter*

A constitutive enzyme present in strains of Aerobacter has been found to decarboqdate phenylacrylic (cinnamic) acids possessing a 4-hydroxy group to the corresponding hydroxystyrenes nonoxidatively. Two such products, 4-hydroxystyrene (4-vinylphenol) and 3 ,Cdihydroxystyrene (4-vinylcatechol) from p-coumaric and caffeic acids, respectively, were purified and identified. Only 4-hydroxystyrene ha...

متن کامل

Enzymatic Decarboxylation of Oxalic Acid* by William

Although it has been recognized that oxalic acid is decomposed by a variety of microorganisms (2-6), relatively little is known of the details of oxalic acid metabolism. The present study represents an attempt to establish the mechanism of oxalate degradation at the enzyme level by the use of a bacterium isolated from soil. Partially purified enzyme preparations obtained from the organism catal...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 1975

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.72.5.1681